diff --git a/src/Redis.OM/Modeling/RedisIndex.cs b/src/Redis.OM/Modeling/RedisIndex.cs
index 5737ef96..db1e8560 100644
--- a/src/Redis.OM/Modeling/RedisIndex.cs
+++ b/src/Redis.OM/Modeling/RedisIndex.cs
@@ -77,7 +77,7 @@ internal static string[] SerializeIndex(this Type type)
 
             if (!string.IsNullOrEmpty(objAttribute.LanguageField))
             {
-                args.Add("LANGUAGE");
+                args.Add("LANGUAGE_FIELD");
                 args.Add(objAttribute.LanguageField!);
             }