diff --git a/packages/ui-default/templates/homework_edit.html b/packages/ui-default/templates/homework_edit.html
index 757c4d2bb..36db68b30 100644
--- a/packages/ui-default/templates/homework_edit.html
+++ b/packages/ui-default/templates/homework_edit.html
@@ -60,7 +60,7 @@
                 columns:4,
                 label:'Extension (days)',
                 name:'extensionDays',
-                value:extension_days
+                value:extensionDays
             }) }}
             {{ form.form_text({
                 columns:4,