diff --git a/apps/ui/src/components/views/board-view/worktree-panel/hooks/use-dev-servers.ts b/apps/ui/src/components/views/board-view/worktree-panel/hooks/use-dev-servers.ts
index a5d47990..90f7bce6 100644
--- a/apps/ui/src/components/views/board-view/worktree-panel/hooks/use-dev-servers.ts
+++ b/apps/ui/src/components/views/board-view/worktree-panel/hooks/use-dev-servers.ts
@@ -114,13 +114,12 @@ export function useDevServers({ projectPath }: UseDevServersOptions) {
 
   const handleOpenDevServerUrl = useCallback(
     (worktree: WorktreeInfo) => {
-      const targetPath = worktree.isMain ? projectPath : worktree.path;
-      const serverInfo = runningDevServers.get(targetPath);
+      const serverInfo = runningDevServers.get(getWorktreeKey(worktree));
       if (serverInfo) {
         window.open(serverInfo.url, '_blank');
       }
     },
-    [projectPath, runningDevServers]
+    [runningDevServers, getWorktreeKey]
   );
 
   const isDevServerRunning = useCallback(