diff --git a/headers/os/midi2/MidiEndpoint.h b/headers/os/midi2/MidiEndpoint.h
index 00be7ce688..42fa98ef89 100644
--- a/headers/os/midi2/MidiEndpoint.h
+++ b/headers/os/midi2/MidiEndpoint.h
@@ -35,8 +35,8 @@ public:
 	status_t SetProperties(const BMessage* properties);
 	status_t GetProperties(BMessage* properties) const;
 
-	status_t Register(void);
-	status_t Unregister(void);
+	status_t Register();
+	status_t Unregister();
 						
 private:
 
diff --git a/src/kits/midi2/MidiEndpoint.cpp b/src/kits/midi2/MidiEndpoint.cpp
index da1dd42261..060876b762 100644
--- a/src/kits/midi2/MidiEndpoint.cpp
+++ b/src/kits/midi2/MidiEndpoint.cpp
@@ -198,7 +198,7 @@ BMidiEndpoint::GetProperties(BMessage* _properties) const
 
 
 status_t
-BMidiEndpoint::Register(void)
+BMidiEndpoint::Register()
 {
 	if (IsRemote()) { 
 		WARN("You cannot Register() remote endpoints");
@@ -216,7 +216,7 @@ BMidiEndpoint::Register(void)
 
 
 status_t
-BMidiEndpoint::Unregister(void)
+BMidiEndpoint::Unregister()
 {
 	if (IsRemote()) { 
 		WARN("You cannot Unregister() remote endpoints");