diff --git a/src/libthread/threadimpl.h b/src/libthread/threadimpl.h
index ee26ea6..6368ff5 100644
--- a/src/libthread/threadimpl.h
+++ b/src/libthread/threadimpl.h
@@ -123,3 +123,4 @@
 extern void _threadsetupdaemonize(void);
 extern void _threaddodaemonize(char*);
 extern void _threadpexit(void);
+extern void _threaddaemonize(void);