diff --git a/app/blueprints/packages/releases.py b/app/blueprints/packages/releases.py
index 278f9aa6..4eec6cd9 100644
--- a/app/blueprints/packages/releases.py
+++ b/app/blueprints/packages/releases.py
@@ -55,7 +55,7 @@ class CreatePackageReleaseForm(FlaskForm):
 
 class EditPackageReleaseForm(FlaskForm):
 	title    = StringField("Title", [InputRequired(), Length(1, 30)])
-	url      = StringField("URL", [URL])
+	url      = StringField("URL", [URL()])
 	task_id  = StringField("Task ID", filters = [lambda x: x or None])
 	approved = BooleanField("Is Approved")
 	min_rel  = QuerySelectField("Minimum Minetest Version", [InputRequired()],