Index: sys/mutex.h
===================================================================
RCS file: /cvs/src/sys/sys/mutex.h,v
retrieving revision 1.8
diff -u -p -r1.8 mutex.h
--- sys/mutex.h	20 Apr 2017 13:57:30 -0000	1.8
+++ sys/mutex.h	16 May 2017 12:04:24 -0000
@@ -96,7 +96,7 @@ void	_mtx_leave(struct mutex *, const ch
 
 #else /* WITNESS */
 
-#define mtx_init(m, ipl)	__mtx_init(m, ipl)
+#define mtx_init(m, ipl)	_mtx_init(m, ipl)
 
 #define mtx_init_flags(m, ipl, name, flags) do {			\
 	(void)(name); (void)(flags);					\