diff --git a/addons/jest/src/components/Panel.js b/addons/jest/src/components/Panel.js
index 9c277c3c101e..245d63743b29 100644
--- a/addons/jest/src/components/Panel.js
+++ b/addons/jest/src/components/Panel.js
@@ -98,7 +98,7 @@ const Content = glamorous(({ tests, className }) => (
   <div className={className}>
     {tests.map(({ name, result }) => {
       if (!result) {
-        return <NoTests>This story has tests configured, but no file was found</NoTests>;
+        return <NoTests key={name}>This story has tests configured, but no file was found</NoTests>;
       }
 
       const successNumber = result.assertionResults.filter(({ status }) => status === 'passed')