diff --git a/src/Psr16/FileSystemCacheEngine.php b/src/Psr16/FileSystemCacheEngine.php
index 3580446..5fdeca7 100644
--- a/src/Psr16/FileSystemCacheEngine.php
+++ b/src/Psr16/FileSystemCacheEngine.php
@@ -204,7 +204,9 @@ public function clear(): bool
         $patternKey = $this->fixKey('*');
         $list = glob($patternKey);
         foreach ($list as $file) {
-            unlink($file);
+            if (file_exists($file)) {
+                unlink($file);
+            }
         }
         return true;
     }