diff --git a/src/core/hle/kernel/mutex.cpp b/src/core/hle/kernel/mutex.cpp
index d559c06bee..0557d10ef8 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) {