diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8a5b919..d934f5f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,23 +6,16 @@ find_package(eCAL CONFIG REQUIRED)
 add_library(utils INTERFACE)
 target_include_directories(utils INTERFACE .)
 
-add_library(ecal_go_types)
-target_sources(ecal_go_types PRIVATE
-  ./ecal/types/types.h
-  ./ecal/types/types.hpp
-  ./ecal/types/types.cpp
-)
-target_include_directories(ecal_go_types
-  PUBLIC ./ecal/types
-)
-target_link_libraries(ecal_go_types PRIVATE eCAL::core)
-
 add_library(ecal_go_core)
 target_sources(ecal_go_core PRIVATE
   ./ecal/core.h
   ./ecal/core.cpp
+  ./ecal/types.h
+  ./ecal/types.hpp
+  ./ecal/types.cpp
 )
 target_link_libraries(ecal_go_core PRIVATE eCAL::core)
+target_include_directories(ecal_go_core PUBLIC ./ecal)
 
 add_library(ecal_go_publisher)
 target_sources(ecal_go_publisher PRIVATE
@@ -43,26 +36,25 @@ target_sources(ecal_go_logging PRIVATE
   ./ecal/logging/logging.h
   ./ecal/logging/logging.cpp
 )
-target_link_libraries(ecal_go_logging PRIVATE eCAL::core ecal_go_types)
+target_link_libraries(ecal_go_logging PRIVATE eCAL::core ecal_go_core)
 
 add_library(ecal_go_registration)
 target_sources(ecal_go_registration PRIVATE
   ./ecal/registration/registration.h
   ./ecal/registration/registration.cpp
 )
-target_link_libraries(ecal_go_registration PRIVATE eCAL::core ecal_go_types)
+target_link_libraries(ecal_go_registration PRIVATE eCAL::core ecal_go_core)
 
 add_library(ecal_go_monitoring)
 target_sources(ecal_go_monitoring PRIVATE
   ./ecal/monitoring/monitoring.h
   ./ecal/monitoring/monitoring.cpp
 )
-target_link_libraries(ecal_go_monitoring PRIVATE eCAL::core ecal_go_types)
+target_link_libraries(ecal_go_monitoring PRIVATE eCAL::core ecal_go_core)
 
 # Subpackages that use cgo
 set(subpackages
   "ecal"
-  "ecal/types"
   "ecal/publisher"
   "ecal/subscriber"
   "ecal/logging"
diff --git a/ecal/logging/logging.go b/ecal/logging/logging.go
index 65d8577..f217e45 100644
--- a/ecal/logging/logging.go
+++ b/ecal/logging/logging.go
@@ -1,6 +1,6 @@
 package logging
 
-// #cgo CPPFLAGS: -I${SRCDIR}/../types
+// #cgo CPPFLAGS: -I${SRCDIR}/..
 // #include <ecal/ecal_log_level.h>
 // #include "logging.h"
 // void GoLog(enum eCAL_Logging_eLogLevel level, _GoString_ msg) {
diff --git a/ecal/logging/logging_test.go b/ecal/logging/logging_test.go
index 22bff17..4997e54 100644
--- a/ecal/logging/logging_test.go
+++ b/ecal/logging/logging_test.go
@@ -7,7 +7,6 @@ import (
 
 	"github.com/DownerCase/ecal-go/ecal"
 	"github.com/DownerCase/ecal-go/ecal/logging"
-	_ "github.com/DownerCase/ecal-go/ecal/types"
 	"github.com/DownerCase/ecal-go/internal/ecaltest"
 )
 
diff --git a/ecal/monitoring/callback.go b/ecal/monitoring/callback.go
index 1cb4e01..aba0a3f 100644
--- a/ecal/monitoring/callback.go
+++ b/ecal/monitoring/callback.go
@@ -7,7 +7,7 @@ import (
 	"runtime/cgo"
 	"unsafe"
 
-	"github.com/DownerCase/ecal-go/ecal/types"
+	"github.com/DownerCase/ecal-go/ecal"
 )
 
 func copyToTopicMons(ctopics []C.struct_CTopicMon) []TopicMon {
@@ -22,7 +22,7 @@ func copyToTopicMons(ctopics []C.struct_CTopicMon) []TopicMon {
 			TopicSize:         int32(pub.topic_size),
 			UnitName:          C.GoString(pub.unit_name),
 			Direction:         C.GoString(pub.direction),
-			Datatype: types.DataType{
+			Datatype: ecal.DataType{
 				Name:     C.GoString(pub.datatype.name),
 				Encoding: C.GoString(pub.datatype.encoding),
 			},
diff --git a/ecal/monitoring/monitoring.go b/ecal/monitoring/monitoring.go
index 3d8d089..7a792c8 100644
--- a/ecal/monitoring/monitoring.go
+++ b/ecal/monitoring/monitoring.go
@@ -3,14 +3,14 @@ package monitoring
 //#cgo LDFLAGS: -lecal_core
 //#include <ecal/ecal_process_severity.h>
 //#include "monitoring.h"
-//#cgo CPPFLAGS: -I${SRCDIR}/../types
+//#cgo CPPFLAGS: -I${SRCDIR}/..
 import "C"
 
 import (
 	"runtime/cgo"
 	"strconv"
 
-	"github.com/DownerCase/ecal-go/ecal/types"
+	"github.com/DownerCase/ecal-go/ecal"
 )
 
 type MonitorEntity uint
@@ -63,7 +63,7 @@ type TopicMon struct {
 	TopicID   string
 	TopicName string
 	Direction string
-	Datatype  types.DataType
+	Datatype  ecal.DataType
 	// TODO: transport layer
 	TopicSize           int32 // Size of messages (bytes)
 	ConnectionsLocal    int32
diff --git a/ecal/publisher/publisher.go b/ecal/publisher/publisher.go
index 875a0a7..4ce079f 100644
--- a/ecal/publisher/publisher.go
+++ b/ecal/publisher/publisher.go
@@ -16,12 +16,12 @@ import (
 	"runtime/cgo"
 	"unsafe"
 
-	"github.com/DownerCase/ecal-go/ecal/types"
+	"github.com/DownerCase/ecal-go/ecal"
 )
 
 var ErrFailedNew = errors.New("failed to create new publisher")
 
-type DataType = types.DataType
+type DataType = ecal.DataType
 
 type Publisher struct {
 	Messages chan []byte
diff --git a/ecal/publisher/publisher_test.go b/ecal/publisher/publisher_test.go
index dbab5b3..ab983f1 100644
--- a/ecal/publisher/publisher_test.go
+++ b/ecal/publisher/publisher_test.go
@@ -4,14 +4,14 @@ import (
 	"fmt"
 	"testing"
 
+	"github.com/DownerCase/ecal-go/ecal"
 	"github.com/DownerCase/ecal-go/ecal/publisher"
-	"github.com/DownerCase/ecal-go/ecal/types"
 	testutilpublisher "github.com/DownerCase/ecal-go/internal/ecaltest/testutil_publisher"
 )
 
 func TestNewPublishers(t *testing.T) {
 	for i := range 100 {
-		ptr, err := publisher.New(fmt.Sprintf("testPubTopic-%v", i), types.DataType{})
+		ptr, err := publisher.New(fmt.Sprintf("testPubTopic-%v", i), ecal.DataType{})
 		if err != nil {
 			t.Error(err)
 		}
diff --git a/ecal/registration/registration.go b/ecal/registration/registration.go
index 7dcc915..0faf6c7 100644
--- a/ecal/registration/registration.go
+++ b/ecal/registration/registration.go
@@ -3,14 +3,14 @@ package registration
 // #cgo LDFLAGS: -lecal_core
 //#include "registration.h"
 //#include "types.h"
-// #cgo CPPFLAGS: -I${SRCDIR}/../types
+// #cgo CPPFLAGS: -I${SRCDIR}/..
 import "C"
 
 import (
 	"log"
 	"runtime/cgo"
 
-	"github.com/DownerCase/ecal-go/ecal/types"
+	"github.com/DownerCase/ecal-go/ecal"
 )
 
 type Event uint8
@@ -20,24 +20,12 @@ const (
 	EntityDeleted Event = 1
 )
 
-type QualityFlags uint8
-
-type (
-	EntityID = types.EntityID
-	TopicID  = types.TopicID
-)
-
 type CallbackToken struct {
 	ecalToken uint
 	goHandle  cgo.Handle
 }
 
-type QualityTopicInfo struct {
-	Datatype     types.DataType
-	QualityFlags QualityFlags
-}
-
-func AddPublisherEventCallback(callback func(TopicID, Event)) CallbackToken {
+func AddPublisherEventCallback(callback func(ecal.TopicID, Event)) CallbackToken {
 	handle := cgo.NewHandle(callback)
 	ecalToken := C.AddPublisherEventCallback(C.uintptr_t(handle))
 	token := CallbackToken{
@@ -52,7 +40,7 @@ func RemPublisherCallback(token CallbackToken) {
 	token.goHandle.Delete()
 }
 
-func AddSubscriberEventCallback(callback func(TopicID, Event)) CallbackToken {
+func AddSubscriberEventCallback(callback func(ecal.TopicID, Event)) CallbackToken {
 	handle := cgo.NewHandle(callback)
 	ecalToken := C.AddSubscriberEventCallback(C.uintptr_t(handle))
 	token := CallbackToken{
@@ -67,9 +55,9 @@ func RemSubscriberCallback(token CallbackToken) {
 	token.goHandle.Delete()
 }
 
-func toTopicID(id *C.struct_CTopicId) TopicID {
-	return TopicID{
-		TopicID: EntityID{
+func toTopicID(id *C.struct_CTopicId) ecal.TopicID {
+	return ecal.TopicID{
+		TopicID: ecal.EntityID{
 			EntityID:  C.GoString(id.topic_id.entity_id),
 			ProcessID: int32(id.topic_id.process_id),
 			HostName:  C.GoString(id.topic_id.host_name),
@@ -81,7 +69,7 @@ func toTopicID(id *C.struct_CTopicId) TopicID {
 //export goTopicEventCallback
 func goTopicEventCallback(handle C.uintptr_t, id C.struct_CTopicId, event C.uint8_t) {
 	h := cgo.Handle(handle)
-	f, ok := h.Value().(func(TopicID, Event))
+	f, ok := h.Value().(func(ecal.TopicID, Event))
 	if !ok {
 		log.Panic("Invalid handle passed to registration callback")
 	}
diff --git a/ecal/subscriber/subscriber.go b/ecal/subscriber/subscriber.go
index c2a2ea1..96bcfab 100644
--- a/ecal/subscriber/subscriber.go
+++ b/ecal/subscriber/subscriber.go
@@ -18,7 +18,7 @@ import (
 	"time"
 	"unsafe"
 
-	"github.com/DownerCase/ecal-go/ecal/types"
+	"github.com/DownerCase/ecal-go/ecal"
 )
 
 var (
@@ -34,7 +34,7 @@ type Subscriber struct {
 	Deserialize func(unsafe.Pointer, int) any
 }
 
-type DataType = types.DataType
+type DataType = ecal.DataType
 
 func New(topic string, datatype DataType) (*Subscriber, error) {
 	sub := &Subscriber{
diff --git a/ecal/types/types.cpp b/ecal/types.cpp
similarity index 100%
rename from ecal/types/types.cpp
rename to ecal/types.cpp
diff --git a/ecal/types/types.go b/ecal/types.go
similarity index 89%
rename from ecal/types/types.go
rename to ecal/types.go
index ad335c4..35c3e07 100644
--- a/ecal/types/types.go
+++ b/ecal/types.go
@@ -1,6 +1,4 @@
-package types
-
-import "C"
+package ecal
 
 type EntityID struct {
 	EntityID  string
diff --git a/ecal/types/types.h b/ecal/types.h
similarity index 100%
rename from ecal/types/types.h
rename to ecal/types.h
diff --git a/ecal/types/types.hpp b/ecal/types.hpp
similarity index 100%
rename from ecal/types/types.hpp
rename to ecal/types.hpp
diff --git a/internal/ecaltest/regtest/test_registration.go b/internal/ecaltest/regtest/test_registration.go
index 4143a5c..c41ec97 100644
--- a/internal/ecaltest/regtest/test_registration.go
+++ b/internal/ecaltest/regtest/test_registration.go
@@ -4,6 +4,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/DownerCase/ecal-go/ecal"
 	"github.com/DownerCase/ecal-go/ecal/registration"
 )
 
@@ -14,11 +15,11 @@ const (
 
 type Callback struct {
 	Event registration.Event
-	ID    registration.TopicID
+	ID    ecal.TopicID
 }
 
-func EventCallback(topic string, channel chan Callback) func(registration.TopicID, registration.Event) {
-	return func(id registration.TopicID, event registration.Event) {
+func EventCallback(topic string, channel chan Callback) func(ecal.TopicID, registration.Event) {
+	return func(id ecal.TopicID, event registration.Event) {
 		if id.TopicName == topic {
 			channel <- Callback{event, id}
 		}
diff --git a/main.go b/main.go
index dfadb80..28216af 100644
--- a/main.go
+++ b/main.go
@@ -111,6 +111,6 @@ func receiveMessages(s *subscriber.Subscriber) {
 	}
 }
 
-func registrationLogger(id registration.TopicID, _ registration.Event) {
+func registrationLogger(id ecal.TopicID, _ registration.Event) {
 	fmt.Println("Received registration sample:", id) //nolint:forbidigo
 }