diff --git a/sys/sys/bufobj.h b/sys/sys/bufobj.h
index b02d4276120..b075644d430 100644
--- a/sys/sys/bufobj.h
+++ b/sys/sys/bufobj.h
@@ -127,7 +127,7 @@ struct bufobj {
 #define	ASSERT_BO_LOCKED(bo)	rw_assert(BO_LOCKPTR((bo)), RA_LOCKED)
 #define	ASSERT_BO_UNLOCKED(bo)	rw_assert(BO_LOCKPTR((bo)), RA_UNLOCKED)
 
-void bufobj_init(struct bufobj *bo, void *private);
+void bufobj_init(struct bufobj *bo, void *priv);
 void bufobj_wdrop(struct bufobj *bo);
 void bufobj_wref(struct bufobj *bo);
 void bufobj_wrefl(struct bufobj *bo);