diff --git a/generate-spec b/generate-spec
index abd1fdc..d3e680d 100755
--- a/generate-spec
+++ b/generate-spec
@@ -620,12 +620,12 @@ foreach ($routes as $scope => $scopeRoutes) {
 			$parameter = [
 				"name" => $urlParameter,
 				"in" => "path",
-				"required" => true,
-				"schema" => $schema,
 			];
 			if ($description !== null) {
 				$parameter["description"] = $description;
 			}
+			$parameter["required"] = true;
+			$parameter["schema"] = $schema;
 
 			$pathParameters[] = $parameter;
 		}