diff --git a/hloc/localize_sfm.py b/hloc/localize_sfm.py
index e9d345ed..6aa3f46f 100644
--- a/hloc/localize_sfm.py
+++ b/hloc/localize_sfm.py
@@ -204,7 +204,7 @@ def main(
                 cam_from_world[qname] = ret["cam_from_world"]
             else:
                 closest = reference_sfm.images[db_ids[0]]
-                cam_from_world[qname] = closest.cam_from_world
+                cam_from_world[qname] = closest.cam_from_world()
             log["covisibility_clustering"] = covisibility_clustering
             logs["loc"][qname] = log