diff --git a/t/t6050-replace.sh b/t/t6050-replace.sh
index e33d512ec1..2500acc2ef 100755
--- a/t/t6050-replace.sh
+++ b/t/t6050-replace.sh
@@ -132,7 +132,7 @@ tagger T A Gger <> 0 +0000
 EOF
 
 test_expect_success 'tag replaced commit' '
-     git mktag <tag.sig >.git/refs/tags/mytag
+     git update-ref refs/tags/mytag $(git mktag <tag.sig)
 '
 
 test_expect_success '"git fsck" works' '