diff --git a/t/t5520-pull.sh b/t/t5520-pull.sh
index 27f38ab3c83c85..bc818605a56a62 100755
--- a/t/t5520-pull.sh
+++ b/t/t5520-pull.sh
@@ -35,6 +35,12 @@ test_pull_autostash_fail () {
 }
 
 test_expect_success setup '
+	# Commit dates are hardcoded to 2005, and the reflog entries will have
+	# a matching timestamp. Maintenance may thus immediately expire
+	# reflogs if it was running.
+	git config set gc.reflogExpire never &&
+	git config set gc.reflogExpireUnreachable never &&
+
 	echo file >file &&
 	git add file &&
 	git commit -a -m original