diff --git a/lib/libc/sys/mincore.2 b/lib/libc/sys/mincore.2
index d39e75284f35..a17a02d648ac 100644
--- a/lib/libc/sys/mincore.2
+++ b/lib/libc/sys/mincore.2
@@ -71,6 +71,9 @@ The
 .Fa vec
 argument points to an illegal address.
 .El
+.Sh BUGS
+This man page is incorrect.
+The vector description is wrong.
 .Sh SEE ALSO
 .Xr madvise 2 ,
 .Xr mprotect 2 ,