diff --git a/Makefile b/Makefile
index bbe08c0b..99b5c4ef 100644
--- a/Makefile
+++ b/Makefile
@@ -114,7 +114,7 @@ dist: distclean
 
 clean:
 	rm -f src/*.o src/*.gcno src/cfgparse.tab.{c,h} src/cfgparse.yy.c src/cfgparse.{output,dot} src/cmdparse.tab.{c,h} src/cmdparse.yy.c src/cmdparse.{output,dot} loglevels.tmp include/loglevels.h
-	(which lcov >/dev/null && lcov -d . --zerocounters) || true
+	(which lcov >/dev/null 2>&1 && lcov -d . --zerocounters) || true
 	$(MAKE) -C docs clean
 	$(MAKE) -C man clean
 	for dir in $(SUBDIRS); do \