diff --git a/src/core/hle/kernel/mutex.cpp b/src/core/hle/kernel/mutex.cpp
index d559c06be..e7bf0ede1 100644
--- a/src/core/hle/kernel/mutex.cpp
+++ b/src/core/hle/kernel/mutex.cpp
@@ -88,6 +88,8 @@ ResultCode Mutex::Release(Thread* thread) {
         WakeupAllWaitingThreads();
         Core::System::GetInstance().PrepareReschedule();
     }
+    
+    return RESULT_SUCCESS;
 }
 
 void Mutex::AddWaitingThread(SharedPtr<Thread> thread) {