diff --git a/include/apple2.draw.h b/include/apple2.draw.h
index bba8853..91bac59 100644
--- a/include/apple2.draw.h
+++ b/include/apple2.draw.h
@@ -1,6 +1,9 @@
 #ifndef _APPLE2_DRAW_H_
 #define _APPLE2_DRAW_H_
 
+#include "apple2.h"
+#include "vm_bits.h"
+
 extern void apple2_draw_pixel(apple2 *, vm_16bit);
 extern void apple2_draw_text(apple2 *, vm_16bit);