diff --git a/src/BladeRouteGenerator.php b/src/BladeRouteGenerator.php
index 9a9bc703..0b66c345 100644
--- a/src/BladeRouteGenerator.php
+++ b/src/BladeRouteGenerator.php
@@ -9,7 +9,7 @@ class BladeRouteGenerator
 {
     public static $generated;
 
-    public function generate($group = null, ?string $nonce = null): string
+    public function generate(?array $group = null, ?string $nonce = null): string
     {
         $ziggy = new Ziggy($group);
 
@@ -28,7 +28,7 @@ public function generate($group = null, ?string $nonce = null): string
         return (string) new $output($ziggy, $routeFunction, $nonce);
     }
 
-    private function generateMergeJavascript(Ziggy $ziggy, string $nonce)
+    private function generateMergeJavascript(Ziggy $ziggy, string $nonce): string
     {
         $output = config('ziggy.output.merge_script', MergeScript::class);