diff --git a/drivers/at24mac/at24mac.c b/drivers/at24mac/at24mac.c
index d23e8e03d4..e377bea3dc 100644
--- a/drivers/at24mac/at24mac.c
+++ b/drivers/at24mac/at24mac.c
@@ -19,6 +19,7 @@
  */
 
 #include <errno.h>
+#include "kernel_defines.h"
 
 #include "at24mac.h"
 #include "at24mac_params.h"