diff --git a/config/cache.php b/config/cache.php
index 0ef2e0326..212623523 100644
--- a/config/cache.php
+++ b/config/cache.php
@@ -1,6 +1,5 @@
 <?php
 
-use App\Models\CustomFilter;
 use Illuminate\Support\Str;
 
 return [
@@ -142,7 +141,7 @@ return [
 
     'prefix' => env(
         'CACHE_PREFIX',
-        Str::slug(env('APP_NAME', 'laravel'), '_') . '_cache'
+        Str::slug(env('APP_NAME', 'laravel'), '_').'_cache'
     ),
 
     /*