diff --git a/types.h b/types.h
index cb972d9..1c932a4 100644
--- a/types.h
+++ b/types.h
@@ -10,4 +10,6 @@ typedef signed short s16;
 typedef signed long s32;
 typedef signed long long s64;
 
+#define false 0
+#define true 1
 #endif