diff --git a/Makefile b/Makefile
index f04bf75..ada6574 100644
--- a/Makefile
+++ b/Makefile
@@ -29,6 +29,7 @@ clean:
 	rm -f $(OBJECTS)
 	rm -rf *.dSYM
 	rm -f depend.mk
+	rm -f test1 test1.o test3 test3.o
 
 depend.mk:
 	gcc $(CFLAGS) -M *.c > $@