diff --git a/test/T010-help-test.sh b/test/T010-help-test.sh
index caf8bdb0..d7266ffc 100755
--- a/test/T010-help-test.sh
+++ b/test/T010-help-test.sh
@@ -12,9 +12,9 @@ if [ $NOTMUCH_HAVE_MAN -eq 1 ]; then
     test_expect_success 'notmuch help tag' 'notmuch help tag'
 else
     test_expect_success 'notmuch --help tag (man pages not available)' \
-	'test_must_fail notmuch --help tag'
+	'test_must_fail notmuch --help tag >/dev/null'
     test_expect_success 'notmuch help tag (man pages not available)' \
-	'test_must_fail notmuch help tag'
+	'test_must_fail notmuch help tag >/dev/null'
 fi
 
 test_done