diff --git a/emu/threading.c b/emu/threading.c
index 5ff682d..d96aadd 100644
--- a/emu/threading.c
+++ b/emu/threading.c
@@ -213,7 +213,11 @@ void
 threadname(char *name)
 {
 	// TODO: make portable
+#ifdef __APPLE__
+	pthread_setname_np(name);
+#else
 	pthread_setname_np(pthread_self(), name);
+#endif
 }
 
 int