diff --git a/src/gprs_bssgp_pcu.c b/src/gprs_bssgp_pcu.c
index 4170a662..06e1814a 100644
--- a/src/gprs_bssgp_pcu.c
+++ b/src/gprs_bssgp_pcu.c
@@ -975,7 +975,7 @@ static void bvc_timeout(void *_priv)
 	if (!the_pcu->bssgp.bvc_sig_reset) {
 		LOGP(DBSSGP, LOGL_INFO, "Sending reset on BVCI 0\n");
 		bssgp_tx_bvc_reset(the_pcu->bssgp.bctx, 0, BSSGP_CAUSE_OML_INTERV);
-		secs = osmo_tdef_get(the_pcu->T_defs, 2, OSMO_TDEF_S, -1);
+		secs = osmo_tdef_get(the_pcu->T_defs, -102, OSMO_TDEF_S, -1);
 		osmo_timer_schedule(&the_pcu->bssgp.bvc_timer, secs, 0);
 		return;
 	}
@@ -984,7 +984,7 @@ static void bvc_timeout(void *_priv)
 		LOGP(DBSSGP, LOGL_INFO, "Sending reset on BVCI %d\n",
 			the_pcu->bssgp.bctx->bvci);
 		bssgp_tx_bvc_reset(the_pcu->bssgp.bctx, the_pcu->bssgp.bctx->bvci, BSSGP_CAUSE_OML_INTERV);
-		secs = osmo_tdef_get(the_pcu->T_defs, 2, OSMO_TDEF_S, -1);
+		secs = osmo_tdef_get(the_pcu->T_defs, -102, OSMO_TDEF_S, -1);
 		osmo_timer_schedule(&the_pcu->bssgp.bvc_timer, secs, 0);
 		return;
 	}
@@ -993,7 +993,7 @@ static void bvc_timeout(void *_priv)
 		LOGP(DBSSGP, LOGL_INFO, "Sending unblock on BVCI %d\n",
 			the_pcu->bssgp.bctx->bvci);
 		bssgp_tx_bvc_unblock(the_pcu->bssgp.bctx);
-		secs = osmo_tdef_get(the_pcu->T_defs, 1, OSMO_TDEF_S, -1);
+		secs = osmo_tdef_get(the_pcu->T_defs, -101, OSMO_TDEF_S, -1);
 		osmo_timer_schedule(&the_pcu->bssgp.bvc_timer, secs, 0);
 		return;
 	}
diff --git a/src/gprs_pcu.c b/src/gprs_pcu.c
index 52e98255..226b861c 100644
--- a/src/gprs_pcu.c
+++ b/src/gprs_pcu.c
@@ -30,13 +30,13 @@
 struct gprs_pcu *the_pcu;
 
 static struct osmo_tdef T_defs_pcu[] = {
-	{ .T=1,     .default_val=30,  .unit=OSMO_TDEF_S,  .desc="BSSGP (un)blocking procedures timer (s)",  .val=0 },
-	{ .T=2,     .default_val=30,  .unit=OSMO_TDEF_S,  .desc="BSSGP reset procedure timer (s)",          .val=0 },
 	{ .T=3190,  .default_val=5,   .unit=OSMO_TDEF_S,  .desc="Return to packet idle mode after Packet DL Assignment on CCCH (s)", .val=0},
 	{ .T=PCU_TDEF_NEIGH_RESOLVE_TO,    .default_val=1000,  .unit=OSMO_TDEF_MS,   .desc="[ARFCN+BSIC]->[RAC+CI] resolution timeout (ms)", .val=0 },
 	{ .T=PCU_TDEF_SI_RESOLVE_TO,	   .default_val=1000,  .unit=OSMO_TDEF_MS,   .desc="RIM RAN-INFO response timeout (ms)",	    .val=0 },
 	{ .T=PCU_TDEF_NEIGH_CACHE_ALIVE,   .default_val=5,  .unit=OSMO_TDEF_S,   .desc="[ARFCN+BSIC]->[RAC+CI] resolution cache entry storage timeout (s)", .val=0 },
 	{ .T=PCU_TDEF_SI_CACHE_ALIVE,      .default_val=5,  .unit=OSMO_TDEF_S,   .desc="[RAC+CI]->[SI] resolution cache entry storage timeout (s)", .val=0 },
+	{ .T=-101,  .default_val=30,  .unit=OSMO_TDEF_S,  .desc="BSSGP (un)blocking procedures timer (s)",  .val=0 },
+	{ .T=-102,  .default_val=30,  .unit=OSMO_TDEF_S,  .desc="BSSGP reset procedure timer (s)",          .val=0 },
 	{ .T=-2000, .default_val=2,   .unit=OSMO_TDEF_MS, .desc="Tbf reject for PRR timer (ms)",            .val=0 },
 	{ .T=-2001, .default_val=2,   .unit=OSMO_TDEF_S,  .desc="PACCH assignment timer (s)",               .val=0 },
 	{ .T=-2002, .default_val=200, .unit=OSMO_TDEF_MS, .desc="Waiting after IMM.ASS confirm timer (ms)", .val=0 },