diff --git a/libs/libc/semaphore/sem_timedwait.c b/libs/libc/semaphore/sem_timedwait.c
index 7eba496abee..629fe315101 100644
--- a/libs/libc/semaphore/sem_timedwait.c
+++ b/libs/libc/semaphore/sem_timedwait.c
@@ -24,8 +24,6 @@
  * Included Files
  ****************************************************************************/
 
-#include <assert.h>
-
 #include <nuttx/semaphore.h>
 
 /****************************************************************************