diff --git a/media/mtp/MtpProperty.cpp b/media/mtp/MtpProperty.cpp
index f7c12d6..86889c3 100644
--- a/media/mtp/MtpProperty.cpp
+++ b/media/mtp/MtpProperty.cpp
@@ -53,7 +53,7 @@
         mDefaultArrayValues(NULL),
         mCurrentArrayLength(0),
         mCurrentArrayValues(NULL),
-        mGroupCode(0),
+        mGroupCode(-1), // disable multiple properties in GetObjectPropList for now
         mFormFlag(kFormNone),
         mEnumLength(0),
         mEnumValues(NULL)