diff --git a/packages/playwright-core/src/server/chromium/crConnection.ts b/packages/playwright-core/src/server/chromium/crConnection.ts
index 0f36e280c9..bcf883f238 100644
--- a/packages/playwright-core/src/server/chromium/crConnection.ts
+++ b/packages/playwright-core/src/server/chromium/crConnection.ts
@@ -190,6 +190,7 @@ export class CRSession extends EventEmitter {
     this._closed = true;
     this._connection._sessions.delete(this._sessionId);
     for (const callback of this._callbacks.values()) {
+      callback.error.setMessage(`Internal server error, session closed.`);
       callback.error.type = this._crashed ? 'crashed' : 'closed';
       callback.error.logs = this._connection._browserDisconnectedLogs;
       callback.reject(callback.error);