diff --git a/tests/bench_msg_pingpong/main.c b/tests/bench_msg_pingpong/main.c
index d97a5b51ea..334038f6ff 100644
--- a/tests/bench_msg_pingpong/main.c
+++ b/tests/bench_msg_pingpong/main.c
@@ -18,6 +18,7 @@
  * @}
  */
 
+#include <stdint.h>
 #include <stdatomic.h>
 #include <stdio.h>
 #include "macros/units.h"