diff --git a/src/fb-stubs/ErrorReporter.js b/src/fb-stubs/ErrorReporter.tsx
similarity index 84%
rename from src/fb-stubs/ErrorReporter.js
rename to src/fb-stubs/ErrorReporter.tsx
index 37963857b..cd3448376 100644
--- a/src/fb-stubs/ErrorReporter.js
+++ b/src/fb-stubs/ErrorReporter.tsx
@@ -10,8 +10,8 @@
  * The recommended way to use this, is to instantiate it inside Logger,
  * so that all logged errors get reported to this class.
  */
-export function cleanStack(stack: string, loc: ?string) {}
-import type ScribeLogger from './ScribeLogger';
+export function cleanStack(stack: string, loc?: string) {}
+import {ScribeLogger} from './ScribeLogger';
 
 export type ObjectError =
   | Error