2 files changed, 8 insertions, 8 deletions
diff --git a/backends/gp32/gp32.cpp b/backends/gp32/gp32.cpp
index cb62c227ba..e9c653a968 100644
--- a/backends/gp32/gp32.cpp
+++ b/backends/gp32/gp32.cpp
@@ -1075,10 +1075,10 @@ void OSystem_GP32::update_cdrom() { }
 void OSystem_GP32::set_timer(int timer, int (*callback)(int)) { }
 
 // Mutex handling
-void* OSystem_GP32::create_mutex() { }
-void OSystem_GP32::lock_mutex(void *mutex) { }
-void OSystem_GP32::unlock_mutex(void *mutex) { }
-void OSystem_GP32::delete_mutex(void *mutex) { }
+MutexRef OSystem_GP32::create_mutex() { }
+void OSystem_GP32::lock_mutex(MutexRef mutex) { }
+void OSystem_GP32::unlock_mutex(MutexRef mutex) { }
+void OSystem_GP32::delete_mutex(MutexRef mutex) { }
 
 // Quit
 void gphalt(int);
diff --git a/backends/gp32/gp32.h b/backends/gp32/gp32.h
index 825eeccb51..19d0f9ebd6 100644
--- a/backends/gp32/gp32.h
+++ b/backends/gp32/gp32.h
@@ -102,10 +102,10 @@ public:
 	void set_timer(int timer, int (*callback)(int));
 
 	// Mutex handling
-	void *create_mutex();
-	void lock_mutex(void *mutex);
-	void unlock_mutex(void *mutex);
-	void delete_mutex(void *mutex);
+	MutexRef create_mutex();
+	void lock_mutex(MutexRef mutex);
+	void unlock_mutex(MutexRef mutex);
+	void delete_mutex(MutexRef mutex);
 
 	// Quit
 	void quit();