diff --git a/t/t1092-sparse-checkout-compatibility.sh b/t/t1092-sparse-checkout-compatibility.sh
index dba5a12703e2a2..3685ff320585bf 100755
--- a/t/t1092-sparse-checkout-compatibility.sh
+++ b/t/t1092-sparse-checkout-compatibility.sh
@@ -36,7 +36,7 @@ test_expect_success 'setup' '
 		touch deep/deeper1/0/1 &&
 		touch deep/deeper1/0/0/0 &&
 		>folder1- &&
-		>folder1. &&
+		>folder1.x &&
 		>folder10 &&
 		cp -r deep/deeper1/0 folder1 &&
 		cp -r deep/deeper1/0 folder2 &&