diff --git a/t/t0450-txt-doc-vs-help.sh b/t/t0450-txt-doc-vs-help.sh
index 55c0fb3cb7..a2da2b0192 100755
--- a/t/t0450-txt-doc-vs-help.sh
+++ b/t/t0450-txt-doc-vs-help.sh
@@ -116,13 +116,13 @@ do
 	if grep -q "^$builtin$" "$TEST_DIRECTORY"/t0450/adoc-missing
 	then
 		test_expect_success "$builtin appropriately marked as not having .adoc" '
-			! test -f "$adoc"
+			test_path_is_missing "$adoc"
 		'
 	else
 		test_set_prereq "$preq"
 
 		test_expect_success "$builtin appropriately marked as having .adoc" '
-			test -f "$adoc"
+			test_path_is_file "$adoc"
 		'
 	fi