diff --git a/debian/50gnm.py b/debian/50gnm.py
index a481710..0738ce2 100644
--- a/debian/50gnm.py
+++ b/debian/50gnm.py
@@ -337,6 +337,17 @@ JSON_CELL_TYPES = {
         "label": "Texte"
       }
     ]
+  },
+  "group-title": {
+    "name": "Intertitre",
+    "url": "{{}}",
+    "form": [
+      {
+        "varname": "text",
+        "type": "text",
+        "label": "Texte"
+      }
+    ]
   }
 }