diff --git a/xwords4/android/app/src/main/java/org/eehouse/android/xw4/MQTTUtils.java b/xwords4/android/app/src/main/java/org/eehouse/android/xw4/MQTTUtils.java
index 4d8ae4d20..38fda0d17 100644
--- a/xwords4/android/app/src/main/java/org/eehouse/android/xw4/MQTTUtils.java
+++ b/xwords4/android/app/src/main/java/org/eehouse/android/xw4/MQTTUtils.java
@@ -309,6 +309,7 @@ public class MQTTUtils extends Thread implements IMqttActionListener, MqttCallba
                 params.put( "vrntName", BuildConfig.VARIANT_NAME );
                 params.put( "dbg", BuildConfig.DEBUG );
                 params.put( "myNow", now );
+                params.put( "loc", LocUtils.getCurLocale( mContext ) );
 
                 String fcmid = FBMService.getFCMDevID( mContext );
                 if ( null != fcmid ) {