diff --git a/wiiu/system/imports.h b/wiiu/system/imports.h
index 866382c1de..11dc810352 100644
--- a/wiiu/system/imports.h
+++ b/wiiu/system/imports.h
@@ -16,6 +16,9 @@ IMPORT(OSSignalCond);
 IMPORT(OSInitSpinLock);
 IMPORT(OSUninterruptibleSpinLock_Acquire);
 IMPORT(OSUninterruptibleSpinLock_Release);
+IMPORT(OSFastMutex_Init);
+IMPORT(OSFastMutex_Lock);
+IMPORT(OSFastMutex_Unlock);
 IMPORT(OSSleepTicks);
 IMPORT(OSGetTitleID);
 IMPORT(OSIsThreadTerminated);