diff --git a/packages/opencode/src/cli/cmd/debug/lsp.ts b/packages/opencode/src/cli/cmd/debug/lsp.ts
index ac1bac7c..4d864db4 100644
--- a/packages/opencode/src/cli/cmd/debug/lsp.ts
+++ b/packages/opencode/src/cli/cmd/debug/lsp.ts
@@ -16,7 +16,7 @@ const DiagnosticsCommand = cmd({
   async handler(args) {
     await bootstrap({ cwd: process.cwd() }, async () => {
       await LSP.touchFile(args.file, true)
-      console.log(await LSP.diagnostics())
+      console.log(JSON.stringify(await LSP.diagnostics(), null, 2))
     })
   },
 })