diff --git a/src/renderers/dom/fiber/ReactDOMFiber.js b/src/renderers/dom/fiber/ReactDOMFiber.js
index b872ed68f9..cd0988f512 100644
--- a/src/renderers/dom/fiber/ReactDOMFiber.js
+++ b/src/renderers/dom/fiber/ReactDOMFiber.js
@@ -288,7 +288,7 @@ var DOMRenderer = ReactFiberReconciler({
   },
 
   shouldDeprioritizeSubtree(type : string, props : Props) : boolean {
-    return Boolean(props.hidden);
+    return !!props.hidden;
   },
 
   createTextInstance(
diff --git a/src/renderers/noop/ReactNoop.js b/src/renderers/noop/ReactNoop.js
index eeab23601d..d0e2f74c15 100644
--- a/src/renderers/noop/ReactNoop.js
+++ b/src/renderers/noop/ReactNoop.js
@@ -102,7 +102,7 @@ var NoopRenderer = ReactFiberReconciler({
   resetTextContent(instance : Instance) : void {},
 
   shouldDeprioritizeSubtree(type : string, props : Props) : boolean {
-    return Boolean(props.hidden);
+    return !!props.hidden;
   },
 
   createTextInstance(