diff --git a/RNTester/js/examples/NewAppScreen/NewAppScreenExample.js b/RNTester/js/examples/NewAppScreen/NewAppScreenExample.js
index 8136f601f4a..c7f9b3dffab 100644
--- a/RNTester/js/examples/NewAppScreen/NewAppScreenExample.js
+++ b/RNTester/js/examples/NewAppScreen/NewAppScreenExample.js
@@ -50,6 +50,7 @@ exports.examples = [
         <View style={{flexDirection: 'row'}}>
           {Object.keys(Colors).map(key => (
             <View
+              key={`color-${key}`}
               style={{width: 50, height: 50, backgroundColor: Colors[key]}}
             />
           ))}