diff --git a/lib/libdisk/libdisk.3 b/lib/libdisk/libdisk.3
index 07c1ffe721b4..d1bbda67ba57 100644
--- a/lib/libdisk/libdisk.3
+++ b/lib/libdisk/libdisk.3
@@ -59,7 +59,9 @@
 .Nm ChunkCanBeRoot ,
 .Nm chunk_n ,
 .Nm slice_type_name
-.Nd library interface to slice and partition labels (libdisk)
+.Nd library interface to slice and partition labels
+.Sh LIBRARY
+.Lb libdisk
 .Sh SYNOPSIS
 .Fd #include <sys/types.h>
 .Fd #include <libdisk.h>