1 files changed, 3 insertions, 0 deletions

diff --git a/uisimulator/x11/kernel.h b/uisimulator/x11/kernel.h
index 7ec2979748..a045a3f117 100644
--- a/uisimulator/x11/kernel.h
+++ b/uisimulator/x11/kernel.h
@@ -22,6 +22,9 @@
 #ifndef NO_REDEFINES_PLEASE
 
 #define sleep(x) x11_sleep(x)
+#define mutex_init(x) (void)x
+#define mutex_lock(x) (void)x
+#define mutex_unlock(x) (void)x
 
 #endif