diff --git a/utilities/ovs-ofctl.8.in b/utilities/ovs-ofctl.8.in
index 07848fd1c17..e5e488abda8 100644
--- a/utilities/ovs-ofctl.8.in
+++ b/utilities/ovs-ofctl.8.in
@@ -923,6 +923,17 @@ The \fBip_frag\fR match type is likely to be most useful in
 \fBnx\-match\fR mode.  See the description of the \fBset\-frags\fR
 command, above, for more details.
 .
+.IP \fBarp_spa=\fIip\fR[\fB/\fInetmask\fR]
+.IQ \fBarp_tpa=\fIip\fR[\fB/\fInetmask\fR]
+When \fBdl_type\fR specifies either ARP or RARP, \fBarp_spa\fR and
+\fBarp_tha\fR match the source and target IPv4 address, respectively.
+An address may be specified as an IP address or host name
+(e.g. \fB192.168.1.1\fR or \fBwww.example.com\fR).  The optional
+\fInetmask\fR allows restricting a match to an IPv4 address prefix.
+The netmask may be specified as a dotted quad
+(e.g. \fB192.168.1.0/255.255.255.0\fR) or as a CIDR block
+(e.g. \fB192.168.1.0/24\fR).
+.
 .IP \fBarp_sha=\fIxx\fB:\fIxx\fB:\fIxx\fB:\fIxx\fB:\fIxx\fB:\fIxx\fR
 .IQ \fBarp_tha=\fIxx\fB:\fIxx\fB:\fIxx\fB:\fIxx\fB:\fIxx\fB:\fIxx\fR
 When \fBdl_type\fR specifies either ARP or RARP, \fBarp_sha\fR and