diff --git a/Makefile b/Makefile
index db2e8db..18de03c 100644
--- a/Makefile
+++ b/Makefile
@@ -18,10 +18,6 @@ all : sample0.xex \
 	ld65 -v -C ./atari-asm-xex.cfg -o $@ dither4.o $<
 
 clean :
-	rm -f dither4.o
-	rm -f dither4.xex
-	rm -f sample[0-6].s
-	rm -f sample[0-6].o
-	rm -f sample[0-6].xex
-	rm -f sample[0-6].s.png
+	rm -f *.o
+	rm -f *.s.png
 	rm -f *.xex