diff --git a/media/mtp/MtpDevice.h b/media/mtp/MtpDevice.h
index 01bc3db..b1b30e4 100644
--- a/media/mtp/MtpDevice.h
+++ b/media/mtp/MtpDevice.h
@@ -112,6 +112,7 @@
     MtpObjectPropertyList*  getObjectPropsSupported(MtpObjectFormat format);
 
     MtpProperty*            getDevicePropDesc(MtpDeviceProperty code);
+    bool                    setDevicePropValueStr(MtpProperty* property);
     MtpProperty*            getObjectPropDesc(MtpObjectProperty code, MtpObjectFormat format);
 
     // Reads value of |property| for |handle|. Returns true on success.