diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index b4ce706..cbc4cb2 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -611,7 +611,7 @@
 /* misc.h */
 #define mutex_lock_nested(...)
 #define mutex_unlock_nested(...)
-#define mutex_is_locked(...)	0
+#define mutex_is_locked(...)	1
 #endif
 
 /* Version of this UBIFS implementation */