diff --git a/src/main/java/io/weaviate/client6/v1/api/rbac/groups/UserType.java b/src/main/java/io/weaviate/client6/v1/api/rbac/groups/UserType.java
index 7a490415d..2058a0f67 100644
--- a/src/main/java/io/weaviate/client6/v1/api/rbac/groups/UserType.java
+++ b/src/main/java/io/weaviate/client6/v1/api/rbac/groups/UserType.java
@@ -5,7 +5,7 @@
 public enum UserType {
   @SerializedName("db_user")
   DB_USER,
-  @SerializedName("db_end_user")
+  @SerializedName("db_env_user")
   DB_ENV_USER,
   @SerializedName("oidc")
   OIDC
diff --git a/src/test/java/io/weaviate/client6/v1/internal/json/JSONTest.java b/src/test/java/io/weaviate/client6/v1/internal/json/JSONTest.java
index e7c0d6203..ee7cec95d 100644
--- a/src/test/java/io/weaviate/client6/v1/internal/json/JSONTest.java
+++ b/src/test/java/io/weaviate/client6/v1/internal/json/JSONTest.java
@@ -2269,6 +2269,12 @@ public static Object[][] testCases() {
                 }
                   """
         },
+        // groups/UserType: the server's value is "db_env_user" -- see #623
+        {
+            io.weaviate.client6.v1.api.rbac.groups.UserType.class,
+            io.weaviate.client6.v1.api.rbac.groups.UserType.DB_ENV_USER,
+            "\"db_env_user\""
+        },
     };
   }