diff --git a/share/man/man9/Makefile b/share/man/man9/Makefile
index 902dcac57964..49a308b5bd70 100644
--- a/share/man/man9/Makefile
+++ b/share/man/man9/Makefile
@@ -901,6 +901,7 @@ MLINKS+=\
 	mbuf.9 m_freem.9 \
 	mbuf.9 MGET.9 \
 	mbuf.9 m_get.9 \
+	mbuf.9 m_getjcl.9 \
 	mbuf.9 m_getcl.9 \
 	mbuf.9 m_getclr.9 \
 	mbuf.9 MGETHDR.9 \
diff --git a/share/man/man9/mbuf.9 b/share/man/man9/mbuf.9
index 42fe3723e40e..ab88ad8ccbd5 100644
--- a/share/man/man9/mbuf.9
+++ b/share/man/man9/mbuf.9
@@ -74,6 +74,8 @@
 .Ft struct mbuf *
 .Fn m_getm "struct mbuf *orig" "int len" "int how" "int type"
 .Ft struct mbuf *
+.Fn m_getjcl "int how" "short type" "int flags" "int size"
+.Ft struct mbuf *
 .Fn m_getcl "int how" "short type" "int flags"
 .Ft struct mbuf *
 .Fn m_getclr "int how" "int type"
@@ -592,6 +594,12 @@ together, as it avoids having to unlock/relock between allocations.
 Returns
 .Dv NULL
 on failure.
+.It Fn m_getjcl how type flags size
+This is like
+.Fn m_getcl
+but it the size of the cluster allocated will be large enough for
+.Fa size
+bytes.
 .It Fn m_getclr how type
 Allocate an
 .Vt mbuf