diff --git a/media/mtp/MtpProperty.cpp b/media/mtp/MtpProperty.cpp
index 86889c3..42945f5 100644
--- a/media/mtp/MtpProperty.cpp
+++ b/media/mtp/MtpProperty.cpp
@@ -312,6 +312,10 @@
     }
 }
 
+void MtpProperty::setFormDateTime() {
+     mFormFlag = kFormDateTime;
+}
+
 void MtpProperty::print() {
     LOGV("MtpProperty %04X\n", mCode);
     LOGV("    type %04X\n", mType);