diff --git a/src/Intervention/Image/ImageServiceProviderLaravelRecent.php b/src/Intervention/Image/ImageServiceProviderLaravelRecent.php
index 8a9bc232e..17a84d0ac 100644
--- a/src/Intervention/Image/ImageServiceProviderLaravelRecent.php
+++ b/src/Intervention/Image/ImageServiceProviderLaravelRecent.php
@@ -77,7 +77,7 @@ protected function bootstrapImageCache()
         // imagecache route
         if (is_string(config('imagecache.route'))) {
 
-            $filename_pattern = '[ \w\\.\\/\\-\\@\(\)]+';
+            $filename_pattern = '[ \w\\.\\/\\-\\@\(\)\=]+';
 
             // route to access template applied image file
             $app['router']->get(config('imagecache.route').'/{template}/{filename}', [