diff --git a/openbsc/src/libcommon/gsm_data.c b/openbsc/src/libcommon/gsm_data.c
index c9f41fc..dd1d93b 100644
--- a/openbsc/src/libcommon/gsm_data.c
+++ b/openbsc/src/libcommon/gsm_data.c
@@ -97,6 +97,7 @@
 	net->T3101 = GSM_T3101_DEFAULT;
 	net->T3105 = GSM_T3105_DEFAULT;
 	net->T3113 = GSM_T3113_DEFAULT;
+	net->T3122 = GSM_T3122_DEFAULT;
 	/* FIXME: initialize all other timers! */
 
 	/* default set of handover parameters */