diff --git a/vector/v.generalize/network.c b/vector/v.generalize/network.c
index 9c4cf5adeb5..62c6a8454c3 100644
--- a/vector/v.generalize/network.c
+++ b/vector/v.generalize/network.c
@@ -258,5 +258,7 @@ int graph_generalization(struct Map_info *In, struct Map_info *Out,
         Vect_destroy_list(prev[i]);
     G_free(prev);
     graph_free(&g);
+    Vect_destroy_line_struct(Points);
+    Vect_destroy_cats_struct(Cats);
     return output;
 }