diff --git a/interfaces/persistence.go b/interfaces/persistence.go
index c634369..10a6d42 100644
--- a/interfaces/persistence.go
+++ b/interfaces/persistence.go
@@ -7,5 +7,5 @@ type Persistence interface {
 
 	Delete(key []byte) error
 
-	GetKeys(key []byte) [][]byte
+	GetKeys() [][]byte
 }