diff --git a/media/mtp/MtpProperty.cpp b/media/mtp/MtpProperty.cpp
index d6beb8a..932ad6a 100644
--- a/media/mtp/MtpProperty.cpp
+++ b/media/mtp/MtpProperty.cpp
@@ -31,6 +31,7 @@
         mDefaultArrayValues(NULL),
         mCurrentArrayLength(0),
         mCurrentArrayValues(NULL),
+        mGroupCode(0),
         mFormFlag(kFormNone),
         mEnumLength(0),
         mEnumValues(NULL)
@@ -52,6 +53,7 @@
         mDefaultArrayValues(NULL),
         mCurrentArrayLength(0),
         mCurrentArrayValues(NULL),
+        mGroupCode(0),
         mFormFlag(kFormNone),
         mEnumLength(0),
         mEnumValues(NULL)
@@ -142,6 +144,7 @@
             if (deviceProp)
                 readValue(packet, mCurrentValue);
     }
+    mGroupCode = packet.getUInt32();
     mFormFlag = packet.getUInt8();
 
     if (mFormFlag == kFormRange) {
@@ -178,6 +181,7 @@
         default:
             writeValue(packet, mDefaultValue);
     }
+    packet.putUInt32(mGroupCode);
     packet.putUInt8(mFormFlag);
     if (mFormFlag == kFormRange) {
             writeValue(packet, mMinimumValue);