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diff --git a/src/extension.ts b/src/extension.ts
index 29fc47907d85943843478ed27aaa37832a8713a8..11058efab6957c1e6e632d30957c086cb2a12414 100755
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -25,6 +25,7 @@   LanguageClientOptions,
   ServerOptions,
   TransportKind,
   State as LanguageClientState,
+  RevealOutputChannelOn,
 } from 'vscode-languageclient/node'
 import { DEFAULT_LANGUAGES } from './lib/languages'
 import isObject from './util/isObject'
@@ -173,6 +174,7 @@       })),
       diagnosticCollectionName: CLIENT_ID,
       workspaceFolder: folder,
       outputChannel: outputChannel,
+      revealOutputChannelOn: RevealOutputChannelOn.Never,
       middleware: {
         async resolveCompletionItem(item, token, next) {
           let result = await next(item, token)