diff --git a/common/gmp.cpp b/common/gmp.cpp
index cddef4f..f477a4e 100755
--- a/common/gmp.cpp
+++ b/common/gmp.cpp
@@ -123,7 +123,7 @@ void GmpConfigForm::on_addGroupRecord_clicked()
     QVariantMap grpRec;
     QListWidgetItem *item = new QListWidgetItem;
 
-    grpRec["groupRecordType"] = defRec.type()-1;
+    grpRec["groupRecordType"] = defRec.type();
     grpRec["groupRecordAddress"] = _defaultGroupIp;
     grpRec["overrideGroupRecordSourceCount"] =defRec.is_override_source_count();
     grpRec["groupRecordSourceCount"] = defRec.source_count();
@@ -615,7 +615,7 @@ QVariant GmpProtocol::fieldData(int index, FieldAttrib attrib,
                     QVariantMap grpRec;
                     OstProto::Gmp::GroupRecord rec = data.group_records(i);
 
-                    grpRec["groupRecordType"] = rec.type()-1;
+                    grpRec["groupRecordType"] = rec.type();
                     // grpRec["groupRecordAddress"] = subclass responsibility
                     grpRec["overrideGroupRecordSourceCount"] = 
                                 rec.is_override_source_count();
@@ -877,7 +877,7 @@ bool GmpProtocol::setFieldData(int index, const QVariant &value,
                 OstProto::Gmp::GroupRecord *rec = data.add_group_records();
                 
                 rec->set_type(OstProto::Gmp::GroupRecord::RecordType(
-                            grpRec["groupRecordType"].toInt() + 1));
+                            grpRec["groupRecordType"].toInt()));
                 // NOTE: rec->group_address => subclass responsibility
                 rec->set_is_override_source_count(
                             grpRec["overrideGroupRecordSourceCount"].toBool());
diff --git a/common/gmp.proto b/common/gmp.proto
index 3d253d2..f1fbf56 100755
--- a/common/gmp.proto
+++ b/common/gmp.proto
@@ -70,6 +70,7 @@ message Gmp {
     //
     message GroupRecord {
         enum RecordType {
+            kReserved = 0;
             kIsInclude = 1;
             kIsExclude = 2;
             kToInclude = 3;
diff --git a/common/gmp.ui b/common/gmp.ui
index d19333e..6260af6 100755
--- a/common/gmp.ui
+++ b/common/gmp.ui
@@ -502,6 +502,11 @@
                </item>
                <item row="0" column="1" >
                 <widget class="QComboBox" name="groupRecordType" >
+                 <item>
+                  <property name="text" >
+                   <string>Reserved</string>
+                  </property>
+                 </item>
                  <item>
                   <property name="text" >
                    <string>Is Include</string>