diff --git a/include/osmocom/gsm/protocol/gsm_04_08_gprs.h b/include/osmocom/gsm/protocol/gsm_04_08_gprs.h
index 39f3b3e..3d18243 100644
--- a/include/osmocom/gsm/protocol/gsm_04_08_gprs.h
+++ b/include/osmocom/gsm/protocol/gsm_04_08_gprs.h
@@ -92,11 +92,13 @@
 	GSM48_IE_GMM_DRX_PARAM		= 0x27,	/* 10.5.5.6 */
 	GSM48_IE_GMM_AUTN		= 0x28,	/* 10.5.3.1.1 */
 	GSM48_IE_GMM_AUTH_RES_EXT	= 0x29, /* 10.5.3.2.1 */
+	GSM48_IE_GMM_TIMER_T3302	= 0x2A,	/* 10.5.7.4 */
 	GSM48_IE_GMM_AUTH_FAIL_PAR	= 0x30,	/* 10.5.3.2.2 */
 	GSM48_IE_GMM_MS_NET_CAPA	= 0x31,	/* 10.5.5.12 */
 	GSM48_IE_GMM_PDP_CTX_STATUS	= 0x32,	/* 10.5.7.1 */
 	GSM48_IE_GMM_PS_LCS_CAPA	= 0x33,	/* 10.5.5.22 */
 	GSM48_IE_GMM_GMM_MBMS_CTX_ST	= 0x35,	/* 10.5.7.6 */
+	GSM48_IE_GMM_TIMER_T3346	= 0x3A,	/* 10.5.7.4 */
 	GSM48_IE_GMM_NET_FEAT_SUPPORT	= 0xB0,	/* 10.5.5.23 */
 };