diff --git a/ext/pgsql/tests/gh21162.phpt b/ext/pgsql/tests/gh21162.phpt
index 9f40ac1136d..6bdfa429144 100644
--- a/ext/pgsql/tests/gh21162.phpt
+++ b/ext/pgsql/tests/gh21162.phpt
@@ -9,7 +9,7 @@ set_error_handler(function (int $errno, string $errstr) {
     echo "Warning caught\n";
 });
 
-pg_connect('');
+pg_connect('host=blablahost.');
 
 echo "Done\n";
 ?>