diff --git a/Makefile b/Makefile
index a63629d..a9f9ffe 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ CFLAGS = -std=c99
 ifeq ($(DEBUG),yes)
 CFLAGS += -g
 PROFILE = no
-dummy := $(shell $(MAKE) clean)
+dummy := $(shell rm -f gc_test *.gcda *.gcno *.o)
 else
 CFLAGS += -O3 -DNDEBUG -march=nocona
 endif