diff --git a/models/res_partner.py b/models/res_partner.py
index d63d2e65e91f49f79696cc472f7b30907f5b37f3..99615006dfb8103d61d06293e0c4cd20119c1a34 100644
--- a/models/res_partner.py
+++ b/models/res_partner.py
@@ -1338,7 +1338,7 @@ class ScopPartner(models.Model):
         elif filtre == "2":
             mycontext = ctx.update({"search_default_my_ur": True})
         else:
-            mycontext = "{'search_default_my_ur': True," + ctx
+            mycontext = ctx.update({"search_default_my_ur": True})
 
         return {
             "name": "Prospects",