diff --git a/lib/Cache.php b/lib/Cache.php
index 950a12a..68c823a 100644
--- a/lib/Cache.php
+++ b/lib/Cache.php
@@ -100,6 +100,8 @@ class Cache {
 
 		$name = strtolower($name);
 
+		$cacheFile = PUBLIC_CACHE_DIR . "/" . $name;
+
 		$ext = substr($name, strrpos($name, ".") + 1);
 		if ($skipExtensionCheck || strtolower($ext) == "jpg" || strtolower($ext) == "jpeg" || strtolower($ext) == "png" || strtolower($ext) == "webp"){
 			$size = strlen($data);