diff --git a/openbsc/src/gprs/gprs_gmm.c b/openbsc/src/gprs/gprs_gmm.c
index 3eddaff..3364713 100644
--- a/openbsc/src/gprs/gprs_gmm.c
+++ b/openbsc/src/gprs/gprs_gmm.c
@@ -688,7 +688,7 @@
 	/* Optional: Protocol configuration options (FIXME: why 'req') */
 	if (pdp->lib->pco_req.l && pdp->lib->pco_req.v)
 		msgb_tlv_put(msg, GSM48_IE_GSM_PROTO_CONF_OPT,
-			     pdp->lib->pco_neg.l, pdp->lib->pco_neg.v);
+			     pdp->lib->pco_req.l, pdp->lib->pco_req.v);
 	/* Optional: Packet Flow Identifier */
 
 	return gsm48_gmm_sendmsg(msg, 0, pdp->mm);