diff --git a/src/Cache/FileTagSet.php b/src/Cache/FileTagSet.php
index ac566b2..3986b52 100644
--- a/src/Cache/FileTagSet.php
+++ b/src/Cache/FileTagSet.php
@@ -31,7 +31,7 @@ public function resetTag($name)
 
 		$oldID = $this->store->get($this->tagKey($name));
 
-		if ($oldID!==false){
+		if ($oldID!==false && $oldID!==''){
 			$job = new FlushTagFromFileCacheJob($oldID, static::$driver);
 			if(!empty($this->store->queue)){
 				$job->onQueue($this->store->queue);