diff --git a/src/midi.cpp b/src/midi.cpp
index d49fcc3..3dee53f 100644
--- a/src/midi.cpp
+++ b/src/midi.cpp
@@ -11,4 +11,4 @@ NAN_MODULE_INIT(InitAll) {
     NodeMidiInput::Init(target);
 }
 
-NODE_MODULE(midi, InitAll)
+NAN_MODULE_WORKER_ENABLED(midi, InitAll)