diff --git a/ProgressBar.gd b/ProgressBar.gd
index 73d0b21..dedf954 100644
--- a/ProgressBar.gd
+++ b/ProgressBar.gd
@@ -2,7 +2,7 @@ extends ProgressBar
 
 var request
 
-func _process(delta):
+func _process(_delta):
 	if request:
 		max_value = request.get_body_size()
 		value = request.get_downloaded_bytes()