diff --git a/gag_app/classes.py b/gag_app/classes.py
index 08dee63..3591c97 100644
--- a/gag_app/classes.py
+++ b/gag_app/classes.py
@@ -8,10 +8,9 @@
 from warnings import warn
 from django.apps import apps
 from django.contrib.contenttypes.models import ContentType
-from django.contrib.gis.geos import GEOSGeometry, WKBWriter
 from gag_app.env import model_to_import, source_cat_to_gag_cat, core_topology, common, list_label_field
 from gag_app.config.config import AUTHENT_STRUCTURE, AUTH_USER, GAG_BASE_LANGUAGE, PORTALS
-from gag_app.utils import get_api_field, deserialize_translated_fields
+from gag_app.utils import geom_to_wkt, get_api_field, deserialize_translated_fields
 
 
 class ParserAPIv2ImportContentTypeModel():
@@ -183,11 +182,7 @@ def one_to_one_fields_build_dict(self):
                 print(self.model_to_import_name, ': topology exists')
                 fk_to_insert['kind'] = self.model_to_import_name.upper()
 
-                geom = GEOSGeometry(str(self.api_data[self.index]['geometry']))  # default SRID of GEOSGeometry is 4326
-                geom.transform(settings.SRID)
-                geom = WKBWriter().write(geom)  # drop Z dimension
-                geom = GEOSGeometry(geom)
-                fk_to_insert['geom'] = geom
+                fk_to_insert['geom'] = geom_to_wkt(self.api_data[self.index])
 
                 for ctf in self.coretopology_fields:
                     ctf_name = ctf.name
diff --git a/gag_app/utils.py b/gag_app/utils.py
index d06fd77..6930266 100644
--- a/gag_app/utils.py
+++ b/gag_app/utils.py
@@ -1,11 +1,13 @@
-def geom4326_to_wkt(data):
-    from gag_app.config.config import SRID
-    from django.contrib.gis.geos import GEOSGeometry
+def geom_to_wkt(data):
+    from django.conf import settings
+    from django.contrib.gis.geos import GEOSGeometry, WKBWriter
 
-    geom = GEOSGeometry(str(data))  # default SRID of GEOSGeometry is 4326
-    geom.transform(SRID)
+    geom = GEOSGeometry(str(data['geometry']))  # default SRID of GEOSGeometry is 4326
+    geom.transform(settings.SRID)
+    geom = WKBWriter().write(geom)  # drop Z dimension
+    geom = GEOSGeometry(geom)
 
-    return geom.wkt
+    return geom
 
 
 def get_api_field(r, index, f_name, value, dict_to_insert):