diff --git a/src/lib/gateway.ts b/src/lib/gateway.ts
index fc4ca39..b14f122 100644
--- a/src/lib/gateway.ts
+++ b/src/lib/gateway.ts
@@ -111,7 +111,7 @@ export class GatewayClient {
       commands: [],
       permissions: {},
       auth: { token: this.authToken },
-      locale: navigator.language || 'en',
+      locale: (typeof navigator !== 'undefined' ? navigator.language : undefined) || 'en',
       userAgent: `pinchchat/${__APP_VERSION__}`,
     }).then((res) => {
       log('connected!', res);