diff --git a/awx/main/models/inventory.py b/awx/main/models/inventory.py
index 524b874270..152f38cd8c 100644
--- a/awx/main/models/inventory.py
+++ b/awx/main/models/inventory.py
@@ -1101,7 +1101,6 @@ class InventorySource(UnifiedJobTemplate, InventorySourceOptions):
                 'credential', 'source_regions', 'instance_filters', 'group_by', 'overwrite', 'overwrite_vars']
 
     def save(self, *args, **kwargs):
-        new_instance = bool(self.pk)
         # If update_fields has been specified, add our field names to it,
         # if it hasn't been specified, then we're just doing a normal save.
         update_fields = kwargs.get('update_fields', [])