diff --git a/media/libmedia/MidiIoWrapper.cpp b/media/libmedia/MidiIoWrapper.cpp
index 4e5d67f..0896e75 100644
--- a/media/libmedia/MidiIoWrapper.cpp
+++ b/media/libmedia/MidiIoWrapper.cpp
@@ -47,7 +47,7 @@
     mLength = size;
 }
 
-MidiIoWrapper::MidiIoWrapper(const sp<DataSource> &source) {
+MidiIoWrapper::MidiIoWrapper(DataSourceBase *source) {
     ALOGV("MidiIoWrapper(DataSource)");
     mFd = -1;
     mDataSource = source;