diff --git a/libshims/libshim_vtservice.cpp b/libshims/libshim_vtservice.cpp
index 9347f1a..d0fd001 100644
--- a/libshims/libshim_vtservice.cpp
+++ b/libshims/libshim_vtservice.cpp
@@ -13,7 +13,7 @@ void _ZN7android10AudioTrackC1E19audio_stream_type_tj14audio_format_t20audio_cha
         audio_channel_mask_t channelMask,
         size_t frameCount,
         audio_output_flags_t flags,
-        android::AudioTrack::callback_t cbf,
+        android::AudioTrack::legacy_callback_t cbf,
         void* user,
         int32_t notificationFrames,
         audio_session_t sessionId,
@@ -33,7 +33,7 @@ void _ZN7android10AudioTrackC1E19audio_stream_type_tj14audio_format_tjj20audio_o
         audio_channel_mask_t channelMask,
         size_t frameCount,
         audio_output_flags_t flags,
-        android::AudioTrack::callback_t cbf,
+        android::AudioTrack::legacy_callback_t cbf,
         void* user,
         int32_t notificationFrames,
         audio_session_t sessionId,