diff --git a/media/jni/android_media_MediaCodec.h b/media/jni/android_media_MediaCodec.h
index c9a1700..2ec8703 100644
--- a/media/jni/android_media_MediaCodec.h
+++ b/media/jni/android_media_MediaCodec.h
@@ -36,10 +36,13 @@
 struct MediaCodec;
 struct PersistentSurface;
 class Surface;
-namespace media {
-class IDescrambler;
-};
-using namespace media;
+namespace hardware {
+namespace cas {
+namespace native {
+namespace V1_0 {
+struct IDescrambler;
+}}}}
+using hardware::cas::native::V1_0::IDescrambler;
 
 struct JMediaCodec : public AHandler {
     JMediaCodec(