diff --git a/desktop/flipper-plugin/src/ui/Sidebar.tsx b/desktop/flipper-plugin/src/ui/Sidebar.tsx
index a2e5f52aa..36e2c6a03 100644
--- a/desktop/flipper-plugin/src/ui/Sidebar.tsx
+++ b/desktop/flipper-plugin/src/ui/Sidebar.tsx
@@ -168,7 +168,7 @@ export class Sidebar extends Component<SidebarProps, SidebarState> {
     if (horizontal) {
       width = width == null ? 200 : width;
       minWidth = (minWidth == null ? 100 : minWidth) + gutterWidth;
-      maxWidth = maxWidth == null ? 600 : maxWidth;
+      maxWidth = maxWidth == null ? 1200 : maxWidth;
     } else {
       height = height == null ? 200 : height;
       minHeight = minHeight == null ? 100 : minHeight;