diff --git a/.gitignore b/.gitignore
index c385d39..2c7ff0f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,8 @@ ROM
 ROM1
 ROM3
 
+# THESE ARE GENERATED BY PERL DURING MAKE
+src/16inst_c.h
+src/8inst_c.h
+src/size_c.h
+