diff --git a/xwords4/android/app/src/main/java/org/eehouse/android/xw4/DictLangCache.java b/xwords4/android/app/src/main/java/org/eehouse/android/xw4/DictLangCache.java
index 4f564cf4a..2f23243da 100644
--- a/xwords4/android/app/src/main/java/org/eehouse/android/xw4/DictLangCache.java
+++ b/xwords4/android/app/src/main/java/org/eehouse/android/xw4/DictLangCache.java
@@ -290,6 +290,16 @@ public class DictLangCache {
         return getInfo( context, dal ).langCode;
     }
 
+    private static String[] s_langCodeStrs;
+    static String getLangCodeStr( Context context, int code )
+    {
+        if ( null == s_langCodeStrs ) {
+            s_langCodeStrs = context.getResources()
+                .getStringArray( R.array.language_codes );
+        }
+        return s_langCodeStrs[code];
+    }
+
     public static String getDictMD5Sum( Context context, String dict )
     {
         String result = null;
diff --git a/xwords4/android/app/src/main/java/org/eehouse/android/xw4/UpdateCheckReceiver.java b/xwords4/android/app/src/main/java/org/eehouse/android/xw4/UpdateCheckReceiver.java
index 5b38c3955..286e439ac 100644
--- a/xwords4/android/app/src/main/java/org/eehouse/android/xw4/UpdateCheckReceiver.java
+++ b/xwords4/android/app/src/main/java/org/eehouse/android/xw4/UpdateCheckReceiver.java
@@ -63,6 +63,7 @@ public class UpdateCheckReceiver extends BroadcastReceiver {
     private static final String k_APP = "app";
     private static final String k_DICTS = "dicts";
     private static final String k_LANG = "lang";
+    private static final String k_LANGCODE = "lc";
     private static final String k_MD5SUM = "md5sum";
     private static final String k_INDEX = "index";
     private static final String k_LEN = "len";
@@ -229,12 +230,14 @@ public class UpdateCheckReceiver extends BroadcastReceiver {
     {
         JSONObject params = new JSONObject();
         int lang = DictLangCache.getDictLangCode( context, dal );
+        String langCode = DictLangCache.getLangCodeStr( context, lang );
         String langStr = DictLangCache.getLangName( context, lang );
         String sum = DictLangCache.getDictMD5Sum( context, dal.name );
         long len = DictLangCache.getFileLen( context, dal );
         try {
             params.put( k_NAME, dal.name );
             params.put( k_LANG, langStr );
+            params.put( k_LANGCODE, langCode );
             params.put( k_MD5SUM, sum );
             params.put( k_INDEX, index );
             params.put( k_LEN, len );