diff --git a/scripts/fitThermoGroupsFromThermoLibrary.ipynb b/scripts/fitThermoGroupsFromThermoLibrary.ipynb
index 2caea5c271..bbe4689c29 100644
--- a/scripts/fitThermoGroupsFromThermoLibrary.ipynb
+++ b/scripts/fitThermoGroupsFromThermoLibrary.ipynb
@@ -528,7 +528,7 @@
     "                                        group = make_group(atom, n_degree_neighbor=n_degree_neighbor)\n",
     "                                        group_str = make_group_name(atom, n_degree_neighbor=n_degree_neighbor)\n",
     "\n",
-    "                                    while any([(group.make_sample_molecule()).is_subgraph_isomorphic(child.item) for child in node.children]):\n",
+    "                                    while any([(group.make_sample_molecule()).is_subgraph_isomorphic(child.item, generate_initial_map = True) for child in node.children]):\n",
     "                                        #Child-node can't be the child of other children\n",
     "                                        #to avoid ambiguous group selection\n",
     "                                        n_degree_neighbor+=1\n",