diff --git a/desktop/flipper-plugin/src/ui/MasterDetail.tsx b/desktop/flipper-plugin/src/ui/MasterDetail.tsx
index ddbfb8d66..0e0560b27 100644
--- a/desktop/flipper-plugin/src/ui/MasterDetail.tsx
+++ b/desktop/flipper-plugin/src/ui/MasterDetail.tsx
@@ -228,7 +228,7 @@ export function MasterDetail<T extends object>({
       return (
         <Layout.Container grow>
           {table}
-          <DetailSidebar>{sidebar}</DetailSidebar>
+          <DetailSidebar width={sidebarSize}>{sidebar}</DetailSidebar>
         </Layout.Container>
       );
     case 'right':