diff --git a/Makefile b/Makefile
index 5f4030f3f..7bc20c3da 100644
--- a/Makefile
+++ b/Makefile
@@ -350,3 +350,12 @@ gfx/mobile/stadium2_n64.2bpp: tools/gfx += --trim-whitespace
 
 %.dimensions: %.png
 	tools/png_dimensions $< $@
+
+
+### File extensions that are never generated and should be manually created
+
+%.inc: ;
+%.pal: ;
+%.bin: ;
+%.blk: ;
+%.rle: ;