diff --git a/camera/ndk/NdkCameraManager.cpp b/camera/ndk/NdkCameraManager.cpp
index 7d9f84b..ff15263 100644
--- a/camera/ndk/NdkCameraManager.cpp
+++ b/camera/ndk/NdkCameraManager.cpp
@@ -24,6 +24,8 @@
 #include <NdkCameraManager.h>
 #include "impl/ACameraManager.h"
 
+using namespace android;
+
 EXPORT
 ACameraManager* ACameraManager_create() {
     ATRACE_CALL();