diff --git a/src/napatrackmater/Trackmate.py b/src/napatrackmater/Trackmate.py
index 5c68ca36..f1d98660 100644
--- a/src/napatrackmater/Trackmate.py
+++ b/src/napatrackmater/Trackmate.py
@@ -493,7 +493,7 @@ def _create_generations(self, all_source_ids: list):
 
         if len(list(self.oneat_dividing_tracks.keys())) > 1:
             for cell_id in list(self.oneat_dividing_tracks.keys()):
-                if cell_id in all_source_ids:
+                if cell_id in all_source_ids and cell_id not in root_splits:
                     root_splits.append(cell_id)
 
         return root_root, root_splits, root_leaf
diff --git a/src/napatrackmater/_version.py b/src/napatrackmater/_version.py
index 026514af..1f49cdde 100644
--- a/src/napatrackmater/_version.py
+++ b/src/napatrackmater/_version.py
@@ -1,2 +1,2 @@
-__version__ = version = "5.1.2"
-__version_tuple__ = version_tuple = (5, 1, 2)
+__version__ = version = "5.1.3"
+__version_tuple__ = version_tuple = (5, 1, 3)