diff --git a/cpu/msp430_common/include/stdatomic.h b/cpu/msp430_common/include/stdatomic.h
index 052fbf0db7..9d653f0d93 100644
--- a/cpu/msp430_common/include/stdatomic.h
+++ b/cpu/msp430_common/include/stdatomic.h
@@ -34,6 +34,7 @@
 
 #include <sys/cdefs.h>
 #include <sys/_types.h>
+#include <stdint.h>
 
 #ifdef __cplusplus
 extern "C" {