diff --git a/server/app.go b/server/app.go
index e22ba90f..d860eecb 100644
--- a/server/app.go
+++ b/server/app.go
@@ -260,7 +260,10 @@ func (server_app *HTTPServerApplication) RunWithFlagSet(ctx context.Context, fs
 		tangramjs_opts.NextzenOptions.StyleURL = nextzen_style_url
 		tangramjs_opts.NextzenOptions.TileURL = nextzen_tile_url
 
+		tangramjs_opts.LeafletOptions.EnableHash()
+
 		leaflet_opts := leaflet.DefaultLeafletOptions()
+		leaflet_opts.EnableHash()
 
 		if enable_tangram {