diff --git a/include/gba/types.h b/include/gba/types.h
index 4acaee2d23..65b65187f8 100644
--- a/include/gba/types.h
+++ b/include/gba/types.h
@@ -2,6 +2,7 @@
 #define GUARD_GBA_TYPES_H
 
 #include <stdint.h>
+#include "gba/defines.h"
 
 typedef uint8_t   u8;
 typedef uint16_t u16;