diff --git a/sys/netipx/ipx_input.c b/sys/netipx/ipx_input.c
index 4d29c60ec41c..bc4587d1d2fc 100644
--- a/sys/netipx/ipx_input.c
+++ b/sys/netipx/ipx_input.c
@@ -86,19 +86,19 @@ __FBSDID("$FreeBSD$");
 
 int	ipxcksum = 0;
 SYSCTL_INT(_net_ipx_ipx, OID_AUTO, checksum, CTLFLAG_RW,
-	   &ipxcksum, 0, "");
+	   &ipxcksum, 0, "compute ipx checksum");
 
 static int	ipxprintfs = 0;		/* printing forwarding information */
 SYSCTL_INT(_net_ipx_ipx, OID_AUTO, ipxprintfs, CTLFLAG_RW,
-	   &ipxprintfs, 0, "");
+	   &ipxprintfs, 0, "printing forwarding information");
 
 static int	ipxforwarding = 0;
 SYSCTL_INT(_net_ipx_ipx, OID_AUTO, ipxforwarding, CTLFLAG_RW,
-	    &ipxforwarding, 0, "");
+	    &ipxforwarding, 0, "do ipx forwarding");
 
 static int	ipxnetbios = 0;
 SYSCTL_INT(_net_ipx, OID_AUTO, ipxnetbios, CTLFLAG_RW,
-	   &ipxnetbios, 0, "");
+	   &ipxnetbios, 0, "propagate netbios over ipx");
 
 const union	ipx_net ipx_zeronet;
 const union	ipx_host ipx_zerohost;
diff --git a/sys/netipx/ipx_usrreq.c b/sys/netipx/ipx_usrreq.c
index f7d56f3ce959..b22b680222e9 100644
--- a/sys/netipx/ipx_usrreq.c
+++ b/sys/netipx/ipx_usrreq.c
@@ -96,10 +96,10 @@ __FBSDID("$FreeBSD$");
 
 static int ipxsendspace = IPXSNDQ;
 SYSCTL_INT(_net_ipx_ipx, OID_AUTO, ipxsendspace, CTLFLAG_RW,
-            &ipxsendspace, 0, "");
+            &ipxsendspace, 0, "ipx send buffer space");
 static int ipxrecvspace = IPXRCVQ;
 SYSCTL_INT(_net_ipx_ipx, OID_AUTO, ipxrecvspace, CTLFLAG_RW,
-            &ipxrecvspace, 0, "");
+            &ipxrecvspace, 0, "ipx receive buffer space");
 
 static	void ipx_usr_abort(struct socket *so);
 static	int ipx_attach(struct socket *so, int proto, struct thread *td);