diff --git a/media/mtp/MtpResponsePacket.cpp b/media/mtp/MtpResponsePacket.cpp
index 6ebac9e..a1979d7 100644
--- a/media/mtp/MtpResponsePacket.cpp
+++ b/media/mtp/MtpResponsePacket.cpp
@@ -20,6 +20,8 @@
 
 #include "MtpResponsePacket.h"
 
+namespace android {
+
 MtpResponsePacket::MtpResponsePacket()
     :   MtpPacket(512)
 {
@@ -49,4 +51,5 @@
 }
 #endif
 
+}  // namespace android