diff --git a/media/libaudioclient/AudioTrack.cpp b/media/libaudioclient/AudioTrack.cpp
index 4269aa2..69f31fc 100644
--- a/media/libaudioclient/AudioTrack.cpp
+++ b/media/libaudioclient/AudioTrack.cpp
@@ -3036,7 +3036,7 @@
     param.addInt(String8(AudioParameter::keyPresentationId), presentationId);
     param.addInt(String8(AudioParameter::keyProgramId), programId);
     ALOGV("%s(%d): PresentationId/ProgramId[%s]",
-            __func__, mPortId, param.toString().string());
+            __func__, mPortId, param.toString().c_str());
 
     status_t status;
     mAudioTrack->setParameters(param.toString().c_str(), &status);
@@ -3525,7 +3525,7 @@
                         mLatency, mSelectedDeviceId, mRoutedDeviceId);
     result.appendFormat("  output(%d) AF latency (%u) AF frame count(%zu) AF SampleRate(%u)\n",
                         mOutput, mAfLatency, mAfFrameCount, mAfSampleRate);
-    ::write(fd, result.string(), result.size());
+    ::write(fd, result.c_str(), result.size());
     return NO_ERROR;
 }