diff --git a/media/mtp/MtpServer.cpp b/media/mtp/MtpServer.cpp
index 57b84ac..d868926 100644
--- a/media/mtp/MtpServer.cpp
+++ b/media/mtp/MtpServer.cpp
@@ -30,6 +30,8 @@
 
 #include "f_mtp.h"
 
+namespace android {
+
 static const MtpOperationCode kSupportedOperationCodes[] = {
     MTP_OPERATION_GET_DEVICE_INFO,
     MTP_OPERATION_OPEN_SESSION,
@@ -514,3 +516,5 @@
 
     return -1;
 }
+
+}  // namespace android