diff --git a/HISTORY.rst b/HISTORY.rst
index 5cf3210..4af6588 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -6,6 +6,8 @@ History
 
 - Nothing changed yet.
 
+- Fix Lines lookup index bug for single cell models
+
 
 2.2.0 (2023-11-07)
 ------------------
diff --git a/threedigrid/admin/h5py_datasource.py b/threedigrid/admin/h5py_datasource.py
index 85c88d9..e228b0a 100644
--- a/threedigrid/admin/h5py_datasource.py
+++ b/threedigrid/admin/h5py_datasource.py
@@ -106,7 +106,10 @@ def execute_query(self, model):
             timeseries_filter = model.get_timeseries_mask_filter()
 
         if model._mixin and hasattr(model.Meta, "lookup_fields"):
-            lookup_index = model._meta._get_lookup_index()
+            try:  # Single cell models don't have Lines
+                lookup_index = model._meta._get_lookup_index()
+            except AttributeError:
+                return np.array([])
 
         if model._mixin and hasattr(model.Meta, "subset_fields"):
             has_subsets = True