diff --git a/netbox/circuits/forms.py b/netbox/circuits/forms.py
index 46472b228..89f7a598f 100644
--- a/netbox/circuits/forms.py
+++ b/netbox/circuits/forms.py
@@ -220,7 +220,7 @@ class CircuitTerminationForm(BootstrapMixin, ChainedFieldsMixin, forms.ModelForm
         label='Interface',
         widget=APISelect(
             api_url='/api/dcim/interfaces/?device_id={{device}}&type=physical',
-            disabled_indicator='is_connected'
+            disabled_indicator='connection'
         )
     )