diff --git a/app/tests/test_control_event_queue.c b/app/tests/test_control_event_queue.c
index dc89fa2d..4f5f79e3 100644
--- a/app/tests/test_control_event_queue.c
+++ b/app/tests/test_control_event_queue.c
@@ -1,3 +1,4 @@
+#include<stdio.h>
 #include <assert.h>
 #include <string.h>