diff --git a/grandlyon/scripts/fill_plus1.py b/grandlyon/scripts/fill_plus1.py
index 2294647..06da1e0 100644
--- a/grandlyon/scripts/fill_plus1.py
+++ b/grandlyon/scripts/fill_plus1.py
@@ -9,7 +9,10 @@ else:
     data = json.load(sys.stdin)
 
 for key in data:
-    formdef = FormDef.get_by_urlname(key)
+    try:
+        formdef = FormDef.get_by_urlname(key)
+    except KeyError:
+        continue
     plus1_field_id = None
     for field in formdef.workflow.backoffice_fields_formdef.fields:
         if field.varname == 'plus1':