diff --git a/desktop/flipper-ui-core/src/chrome/fb-stubs/SignInSheet.tsx b/desktop/flipper-ui-core/src/chrome/fb-stubs/SignInSheet.tsx
index 4851d1e0c..b9d232221 100644
--- a/desktop/flipper-ui-core/src/chrome/fb-stubs/SignInSheet.tsx
+++ b/desktop/flipper-ui-core/src/chrome/fb-stubs/SignInSheet.tsx
@@ -7,6 +7,10 @@
  * @format
  */
 
+export function isSheetOpen(): boolean {
+  return false;
+}
+
 export async function showLoginDialog(
   _initialToken: string = '',
 ): Promise<boolean> {