diff --git a/recoco/apps/addressbook/rest.py b/recoco/apps/addressbook/rest.py
index fcf20903e..27763e20f 100644
--- a/recoco/apps/addressbook/rest.py
+++ b/recoco/apps/addressbook/rest.py
@@ -59,45 +59,21 @@ class ContactViewSet(ModelViewSet):
     filter_backends = [OrgaStartswithFilterBackend]
 
     search_fields = [
-        (
-            "last_name",
-            {"config": "french_unaccent", "weight": "A"},
-        ),
-        (
-            "first_name",
-            {"config": "french_unaccent", "weight": "A"},
-        ),
-        (
-            "email",
-            {"config": "french_unaccent", "weight": "A"},
-        ),
-        (
-            "division",
-            {"config": "french_unaccent", "weight": "B"},
-        ),
-        (
-            "organization__name",
-            {"config": "french_unaccent", "weight": "B"},
-        ),
-        (
-            "organization__group__name",
-            {"config": "french_unaccent", "weight": "B"},
-        ),
-        (
-            "organization__departments__name",
-            {"config": "french_unaccent", "weight": "C"},
-        ),
+        ("last_name", {"weight": "A"}),
+        ("first_name", {"weight": "A"}),
+        ("email", {"weight": "A"}),
+        ("division", {"weight": "B"}),
+        ("organization__name", {"weight": "B"}),
+        ("organization__group__name", {"weight": "B"}),
+        ("organization__departments__name", {"weight": "C"}),
         (
             "organization__departments__code",
-            {"weight": "C"},
-        ),
-        (
-            "organization__departments__region__name",
-            {"config": "french_unaccent", "weight": "C"},
+            {"config": "simple", "weight": "C"},
         ),
+        ("organization__departments__region__name", {"weight": "C"}),
         (
             "organization__departments__region__code",
-            {"weight": "C"},
+            {"config": "simple", "weight": "C"},
         ),
     ]
     search_min_rank = 0.05
diff --git a/recoco/rest_api/filters.py b/recoco/rest_api/filters.py
index c85ca9e73..528554426 100644
--- a/recoco/rest_api/filters.py
+++ b/recoco/rest_api/filters.py
@@ -72,9 +72,16 @@ def filter_queryset(self, request, queryset, view):
         search_vector = None
         for search_field in search_fields:
             if isinstance(search_field, tuple):
-                _vector = SearchVector(search_field[0], **search_field[1])
+                _vector = SearchVector(
+                    search_field[0],
+                    **{"config": "french_unaccent", **search_field[1]},
+                )
             else:
-                _vector = SearchVector(search_field, config="french_unaccent")
+                _vector = SearchVector(
+                    search_field,
+                    config="french_unaccent",
+                )
+
             if search_vector is None:
                 search_vector = _vector
             else: