diff --git a/app/fax_queue/resources/service/fax_queue.php b/app/fax_queue/resources/service/fax_queue.php
index 552645d7e8..2b4d152777 100644
--- a/app/fax_queue/resources/service/fax_queue.php
+++ b/app/fax_queue/resources/service/fax_queue.php
@@ -204,7 +204,7 @@
 	}
 
 //remove the old pid file
-	if (file_exists($file)) {
+	if (file_exists($pid_file)) {
 		unlink($pid_file);
 	}