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--- a/ForgeTracker/forgetracker/tracker_main.py
+++ b/ForgeTracker/forgetracker/tracker_main.py
@@ -1241,8 +1241,9 @@
         self.app.globals.closed_status_names=post_data['closed_status_names']
         custom_fields = post_data.get('custom_fields', [])
         for field in custom_fields:
-            field['name'] = '_' + '_'.join([
-                w for w in NONALNUM_RE.split(field['label'].lower()) if w])
+            if 'name' not in field or not field['name']:
+                field['name'] = '_' + '_'.join([
+                    w for w in NONALNUM_RE.split(field['label'].lower()) if w])
             if field['type'] == 'milestone':
                 field.setdefault('milestones', [])