1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index ce6e577..6312cfa 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,7 @@ all: nthash.c
 
 check:
 	$(ECHO) -n "testing123" | ./nthash | \
-		$(GREP) '^3e678b266d1d449e531e92bec33b6d27$$'
+		$(GREP) -q '^3e678b266d1d449e531e92bec33b6d27$$'
 
 install:
 	$(INSTALL) -D -m0755 nthash $(DESTDIR)/usr/bin/nthash