diff --git a/test/ReactViews/MoreShallowTools.js b/test/ReactViews/MoreShallowTools.js
index c52e091d7d..a8b249bf49 100644
--- a/test/ReactViews/MoreShallowTools.js
+++ b/test/ReactViews/MoreShallowTools.js
@@ -16,7 +16,7 @@ export function getShallowRenderedOutput(jsx) {
 
 export function getMountedInstance(jsx) {
   const renderer = getRenderedRenderer(jsx);
-  return renderer.getMountedInstance(renderer);
+  return renderer.getMountedInstance();
 }
 
 export function findAllEqualTo(reactElement, text) {