formatting

diff --git a/packages/devtools_app/lib/src/screens/performance/panes/timeline_events/perfetto/_perfetto_controller_web.dart b/packages/devtools_app/lib/src/screens/performance/panes/timeline_events/perfetto/_perfetto_controller_web.dart
index 466dbcb..93a6593 100644
--- a/packages/devtools_app/lib/src/screens/performance/panes/timeline_events/perfetto/_perfetto_controller_web.dart
+++ b/packages/devtools_app/lib/src/screens/performance/panes/timeline_events/perfetto/_perfetto_controller_web.dart

@@ -120,7 +120,7 @@
     }
     final basePath = devtoolsAssetsBasePath(
       origin: html.window.location.origin,
-      path: html.window.location.pathname  ?? '',
+      path: html.window.location.pathname ?? '',
     );
     final indexFilePath = ui_web.assetManager
         .getAssetUrl(devToolsExtensionPoints.perfettoIndexLocation);