diff --git a/src/vcm.c b/src/vcm.c
index ca43a31..27cbb89 100644
--- a/src/vcm.c
+++ b/src/vcm.c
@@ -161,7 +161,9 @@ static int vcm_check_handle_request(VCM_t* vcm, mc_neighbour_s* neighbour) {
         vcm_rep->vcm.chain->link.buf = malloc(32);
         vcm_rep->vcm.chain->link.size = 32;
         memcpy(vcm_rep->vcm.chain->link.buf, coordination->chain.link, 32);
-        vcm_rep->vcm.chain->area.present = ChainGeoRegion_PR_circle;
+        vcm_rep->vcm.chain->area = calloc(1, sizeof(OCTET_STRING_t));
+        vcm_rep->vcm.chain->area->buf = malloc(4);
+        vcm_rep->vcm.chain->area->size = 4;
     }
 
     vcm_rep->vcm.maneuverContainer.present = ManeuverContainer_PR_vehicle;
@@ -361,7 +363,9 @@ static int intersection_detected(VCM_t* vcm, mc_neighbour_s* neighbour) {
         vcm_req->vcm.chain->link.buf = malloc(32);
         vcm_req->vcm.chain->link.size = 32;
         memcpy(vcm_req->vcm.chain->link.buf, coordination->chain.link, 32);
-        vcm_req->vcm.chain->area.present = ChainGeoRegion_PR_circle;
+        vcm_req->vcm.chain->area = calloc(1, sizeof(OCTET_STRING_t));
+        vcm_req->vcm.chain->area->buf = malloc(4);
+        vcm_req->vcm.chain->area->size = 4;
     }
 
     vcm_req->vcm.maneuverContainer.present = ManeuverContainer_PR_vehicle;
@@ -644,7 +648,9 @@ static int mk_vcm(uint8_t* vcm_uper, uint16_t* vcm_uper_len) {
         vcm->vcm.chain->link.buf = malloc(32);
         vcm->vcm.chain->link.size = 32;
         memcpy(vcm->vcm.chain->link.buf, coordination->chain.link, 32);
-        vcm->vcm.chain->area.present = ChainGeoRegion_PR_circle;
+        vcm->vcm.chain->area = calloc(1, sizeof(OCTET_STRING_t));
+        vcm->vcm.chain->area->buf = malloc(4);
+        vcm->vcm.chain->area->size = 4;
     }
 
     if (facilities.station_type == StationType_roadSideUnit) {