From 48786863d7b0cf2b9109b5d0cc804d7a2c6842d1 Mon Sep 17 00:00:00 2001
From: Michael Shilman <shilman@users.noreply.github.com>
Date: Mon, 29 Nov 2021 23:31:21 +0800
Subject: [PATCH] Merge pull request #16823 from ThaNarie/patch-1

Core: Fix packageName check in build-dev
---
 lib/core-server/src/build-dev.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/core-server/src/build-dev.ts b/lib/core-server/src/build-dev.ts
index 259fac8d700d..f1a662feccfd 100644
--- a/lib/core-server/src/build-dev.ts
+++ b/lib/core-server/src/build-dev.ts
@@ -112,7 +112,7 @@ export async function buildDevStandalone(options: CLIOptions & LoadOptions & Bui
   }
 
   // Get package name and capitalize it e.g. @storybook/react -> React
-  const packageName = name.split('@storybook/').length > 0 ? name.split('@storybook/')[1] : name;
+  const packageName = name.split('@storybook/').length > 1 ? name.split('@storybook/')[1] : name;
   const frameworkName = packageName.charAt(0).toUpperCase() + packageName.slice(1);
 
   outputStartupInformation({