diff --git a/scripts/base_network.py b/scripts/base_network.py
index 118e7dba3..8172b332a 100644
--- a/scripts/base_network.py
+++ b/scripts/base_network.py
@@ -808,7 +808,7 @@ def voronoi(points, outline, crs=4326):
         voronoi = gpd.GeoDataFrame(geometry=voronoi)
         joined = gpd.sjoin_nearest(pts, voronoi, how="right")
 
-    return joined.dissolve(by="Bus").squeeze()
+    return joined.dissolve(by="Bus").reindex(points.index).squeeze()
 
 
 def build_bus_shapes(n, country_shapes, offshore_shapes, countries):