From 02b4d1e2fca3c17cceb470aa68a50385cda480b2 Mon Sep 17 00:00:00 2001
From: Aiden Cline <63023139+rekram1-node@users.noreply.github.com>
Date: Mon, 22 Sep 2025 21:14:55 -0500
Subject: [PATCH] fix: lsp extension undefined handle (#2739)

---
 packages/opencode/src/lsp/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/opencode/src/lsp/index.ts b/packages/opencode/src/lsp/index.ts
index bc83c8f7..87dc1645 100644
--- a/packages/opencode/src/lsp/index.ts
+++ b/packages/opencode/src/lsp/index.ts
@@ -72,7 +72,7 @@ export namespace LSP {
           ...existing,
           id: name,
           root: existing?.root ?? (async () => Instance.directory),
-          extensions: item.extensions ?? existing.extensions,
+          extensions: item.extensions ?? existing?.extensions ?? [],
           spawn: async (root) => {
             return {
               process: spawn(item.command[0], item.command.slice(1), {