diff --git a/openbsc/tests/mgcp/mgcp_test.c b/openbsc/tests/mgcp/mgcp_test.c
index 7653a0d..538dc9f 100644
--- a/openbsc/tests/mgcp/mgcp_test.c
+++ b/openbsc/tests/mgcp/mgcp_test.c
@@ -366,6 +366,8 @@
 			endp->net_end.packet_duration_ms = -1;
 			endp->bts_end.output_enabled = 0;
 			endp->net_end.output_enabled = 0;
+			endp->local_options.pkt_period_min = 0;
+			endp->local_options.pkt_period_max = 0;
 			endp->conn_mode = -1;
 		}
 
diff --git a/openbsc/tests/mgcp/mgcp_test.ok b/openbsc/tests/mgcp/mgcp_test.ok
index d5fb56f..43a7402 100644
--- a/openbsc/tests/mgcp/mgcp_test.ok
+++ b/openbsc/tests/mgcp/mgcp_test.ok
@@ -45,7 +45,7 @@
 Connection mode: 2, BTS output disabled, NET output disabled
 Testing DLCX
 Detected packet duration: 20
-Requested packetetization period: 20-20
+Requested packetization period not set
 Connection mode: 0, BTS output enabled, NET output enabled
 Testing CRCX_ZYN
 Packet duration not set