diff --git a/header.inc b/header.asm
similarity index 100%
rename from header.inc
rename to header.asm
diff --git a/pewpew.asm b/pewpew.asm
index 6f886bf..5e9af86 100644
--- a/pewpew.asm
+++ b/pewpew.asm
@@ -1,4 +1,4 @@
-.INCLUDE "header.inc"
+.INCLUDE "header.asm"
 .INCLUDE "InitSNES.asm"