diff --git a/media/libmediahelper/AudioParameter.cpp b/media/libmediahelper/AudioParameter.cpp
index a61a1bc..3832e90 100644
--- a/media/libmediahelper/AudioParameter.cpp
+++ b/media/libmediahelper/AudioParameter.cpp
@@ -33,6 +33,7 @@
 const char * const AudioParameter::keyFrameCount = AUDIO_PARAMETER_STREAM_FRAME_COUNT;
 const char * const AudioParameter::keyInputSource = AUDIO_PARAMETER_STREAM_INPUT_SOURCE;
 const char * const AudioParameter::keyScreenState = AUDIO_PARAMETER_KEY_SCREEN_STATE;
+const char * const AudioParameter::keyScreenRotation = AUDIO_PARAMETER_KEY_ROTATION;
 const char * const AudioParameter::keyClosing = AUDIO_PARAMETER_KEY_CLOSING;
 const char * const AudioParameter::keyExiting = AUDIO_PARAMETER_KEY_EXITING;
 const char * const AudioParameter::keyBtSco = AUDIO_PARAMETER_KEY_BT_SCO;