diff --git a/t/t9813-git-p4-preserve-users.sh b/t/t9813-git-p4-preserve-users.sh
index 76004a5ad6..bda222aa02 100755
--- a/t/t9813-git-p4-preserve-users.sh
+++ b/t/t9813-git-p4-preserve-users.sh
@@ -118,12 +118,12 @@ test_expect_success 'not preserving user with mixed authorship' '
 		make_change_by_user usernamefile3 Derek derek@example.com &&
 		P4EDITOR=cat P4USER=alice P4PASSWD=secret &&
 		export P4EDITOR P4USER P4PASSWD &&
-		git p4 commit |\
-		grep "git author derek@example.com does not match" &&
+		git p4 commit >actual &&
+		grep "git author derek@example.com does not match" actual &&
 
 		make_change_by_user usernamefile3 Charlie charlie@example.com &&
-		git p4 commit |\
-		grep "git author charlie@example.com does not match" &&
+		git p4 commit >actual &&
+		grep "git author charlie@example.com does not match" actual &&
 
 		make_change_by_user usernamefile3 alice alice@example.com &&
 		git p4 commit >actual &&