diff --git a/libs/libzrtp/src/zrtp_iface_scheduler.c b/libs/libzrtp/src/zrtp_iface_scheduler.c
index 16386cafdb..fe4a2fd014 100644
--- a/libs/libzrtp/src/zrtp_iface_scheduler.c
+++ b/libs/libzrtp/src/zrtp_iface_scheduler.c
@@ -102,7 +102,7 @@ int zrtp_sleep(unsigned int msec)
 	struct timespec delay;
 	delay.tv_sec = msec / 1000;
 	delay.tv_nsec = (msec % 1000) * 1000000;
-	while (nanosleep(&delay, &delay)) ;
+	while (nanosleep(&delay, &delay));
 #else
 	usleep(msec*1000);
 #endif