diff --git a/packages/trace-viewer/src/ui/settingsToolbarButton.tsx b/packages/trace-viewer/src/ui/settingsToolbarButton.tsx
index 99fb849e64..cbb0284ec9 100644
--- a/packages/trace-viewer/src/ui/settingsToolbarButton.tsx
+++ b/packages/trace-viewer/src/ui/settingsToolbarButton.tsx
@@ -33,6 +33,7 @@ export const SettingsToolbarButton: React.FC<{}> = () => {
         onClick={() => setOpen(current => !current)}
       />
       <Dialog
+        className='settings-toolbar-dialog'
         style={{
           backgroundColor: 'var(--vscode-sideBar-background)',
           padding: '4px 8px'