diff --git a/RecordParser.Benchmark/VariableLengthWriterBenchmark.cs b/RecordParser.Benchmark/VariableLengthWriterBenchmark.cs
index 7be0b4f..c4a2a2e 100644
--- a/RecordParser.Benchmark/VariableLengthWriterBenchmark.cs
+++ b/RecordParser.Benchmark/VariableLengthWriterBenchmark.cs
@@ -5,7 +5,7 @@
 using FlatFiles;
 using FlatFiles.TypeMapping;
 using RecordParser.Builders.Writer;
-using RecordParser.Extensions.FileWriter;
+using RecordParser.Extensions;
 using SoftCircuits.CsvParser;
 using System;
 using System.Collections.Generic;
diff --git a/RecordParser.Test/FileReaderTest.cs b/RecordParser.Test/FileReaderTest.cs
index 6616549..1df32f2 100644
--- a/RecordParser.Test/FileReaderTest.cs
+++ b/RecordParser.Test/FileReaderTest.cs
@@ -1,7 +1,7 @@
 using FluentAssertions;
 using MoreLinq;
 using RecordParser.Builders.Reader;
-using RecordParser.Extensions.FileReader;
+using RecordParser.Extensions;
 using System;
 using System.Collections.Generic;
 using System.Globalization;
diff --git a/RecordParser.Test/FileWriterTest.cs b/RecordParser.Test/FileWriterTest.cs
index efd5daf..408176c 100644
--- a/RecordParser.Test/FileWriterTest.cs
+++ b/RecordParser.Test/FileWriterTest.cs
@@ -3,8 +3,7 @@
 using MoreLinq;
 using RecordParser.Builders.Reader;
 using RecordParser.Builders.Writer;
-using RecordParser.Extensions.FileReader;
-using RecordParser.Extensions.FileWriter;
+using RecordParser.Extensions;
 using System;
 using System.Collections.Generic;
 using System.IO;
diff --git a/RecordParser.Test/NamespaceTest.cs b/RecordParser.Test/NamespaceTest.cs
new file mode 100644
index 0000000..e38ecc9
--- /dev/null
+++ b/RecordParser.Test/NamespaceTest.cs
@@ -0,0 +1,35 @@
+using FluentAssertions;
+using RecordParser.Extensions;
+using System;
+using System.Linq;
+using Xunit;
+
+namespace RecordParser.Test
+{
+    public class NamespaceTest : TestSetup
+    {
+        [Fact]
+        public void Given_public_types_inside_extensions_folder_should_not_have_namespaces_referencing_subfolder()
+        {
+            // Arrange
+
+            bool IsDelegate(Type type) => typeof(Delegate).IsAssignableFrom(type.BaseType);
+
+            var location = "RecordParser.Extensions";
+            var types = typeof(WriterExtensions)
+                .Assembly
+                .GetTypes()
+                .Where(x => x.IsPublic && IsDelegate(x) is false)
+                .Where(x => x.Namespace.StartsWith(location))
+                .ToArray();
+
+            // Act
+
+            var typesDifferentLocation = types.Where(x => x.Namespace != location);
+
+            // Assert
+
+            typesDifferentLocation.Should().BeEmpty();
+        }
+    }
+}
diff --git a/RecordParser/Extensions/FileReader/FixedLengthReaderExtensions.cs b/RecordParser/Extensions/FileReader/FixedLengthReaderExtensions.cs
index 0b691cb..0636b6a 100644
--- a/RecordParser/Extensions/FileReader/FixedLengthReaderExtensions.cs
+++ b/RecordParser/Extensions/FileReader/FixedLengthReaderExtensions.cs
@@ -2,9 +2,9 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
-using static RecordParser.Extensions.FileReader.ReaderCommon;
+using static RecordParser.Extensions.ReaderCommon;
 
-namespace RecordParser.Extensions.FileReader
+namespace RecordParser.Extensions
 {
     public class FixedLengthReaderOptions<T>
     {
diff --git a/RecordParser/Extensions/FileReader/ReaderCommon.cs b/RecordParser/Extensions/FileReader/ReaderCommon.cs
index 2efd3d4..ddef2b1 100644
--- a/RecordParser/Extensions/FileReader/ReaderCommon.cs
+++ b/RecordParser/Extensions/FileReader/ReaderCommon.cs
@@ -4,7 +4,7 @@
 using System.Linq;
 using System.Threading;
 
-namespace RecordParser.Extensions.FileReader
+namespace RecordParser.Extensions
 {
     public class ParallelismOptions
     {
diff --git a/RecordParser/Extensions/FileReader/VariableLengthReaderExtensions.cs b/RecordParser/Extensions/FileReader/VariableLengthReaderExtensions.cs
index ef69c5e..c27bbd3 100644
--- a/RecordParser/Extensions/FileReader/VariableLengthReaderExtensions.cs
+++ b/RecordParser/Extensions/FileReader/VariableLengthReaderExtensions.cs
@@ -3,9 +3,9 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
-using static RecordParser.Extensions.FileReader.ReaderCommon;
+using static RecordParser.Extensions.ReaderCommon;
 
-namespace RecordParser.Extensions.FileReader
+namespace RecordParser.Extensions
 {
     public class VariableLengthReaderOptions
     {
diff --git a/RecordParser/Extensions/FileReader/VariableLengthReaderRawExtensions.cs b/RecordParser/Extensions/FileReader/VariableLengthReaderRawExtensions.cs
index 741d5e7..9bfdf1c 100644
--- a/RecordParser/Extensions/FileReader/VariableLengthReaderRawExtensions.cs
+++ b/RecordParser/Extensions/FileReader/VariableLengthReaderRawExtensions.cs
@@ -7,9 +7,9 @@
 using System.IO;
 using System.Linq;
 using System.Linq.Expressions;
-using static RecordParser.Extensions.FileReader.ReaderCommon;
+using static RecordParser.Extensions.ReaderCommon;
 
-namespace RecordParser.Extensions.FileReader
+namespace RecordParser.Extensions
 {
     public delegate string StringPool(ReadOnlySpan<char> text);
     internal delegate void Get(ref TextFindHelper finder, string[] inst, StringPool cache);
diff --git a/RecordParser/Extensions/FileWriter/WriterExtensions.cs b/RecordParser/Extensions/FileWriter/WriterExtensions.cs
index ae7dd06..83767a3 100644
--- a/RecordParser/Extensions/FileWriter/WriterExtensions.cs
+++ b/RecordParser/Extensions/FileWriter/WriterExtensions.cs
@@ -4,10 +4,8 @@
 using System.IO;
 using System.Linq;
 
-namespace RecordParser.Extensions.FileWriter
+namespace RecordParser.Extensions
 {
-    using RecordParser.Extensions.FileReader;
-
     /// <summary>
     /// Delegate representing object to text convert method.
     /// </summary>