diff --git a/include/osmocom/gsm/protocol/gsm_44_318.h b/include/osmocom/gsm/protocol/gsm_44_318.h
index 2a610c8b7..cd5ec05ad 100644
--- a/include/osmocom/gsm/protocol/gsm_44_318.h
+++ b/include/osmocom/gsm/protocol/gsm_44_318.h
@@ -92,7 +92,7 @@ enum gan_iei {
 	GA_IE_REG_REJ_CAUSE	= 21,
 	GA_IE_TU3906_TIMER	= 22,
 	GA_IE_TU3910_TIMER	= 23,
-	GA_IE_TU3920_TIMER	= 24,
+	GA_IE_TU3902_TIMER	= 24,
 	GA_IE_L3_MSG		= 26,
 	GA_IE_CHAN_MODE		= 27,
 	GA_IE_MS_CLASSMARK2	= 28,
@@ -104,7 +104,7 @@ enum gan_iei {
 	GA_IE_TLLI		= 34,
 	GA_IE_PFI		= 35,
 	GA_IE_SUSP_CAUSE	= 36,
-	GA_IE_TU3820_TIMER	= 37,
+	GA_IE_TU3920_TIMER	= 37,
 	GA_IE_REQD_QOS		= 38,
 	GA_IE_P_DEACT_CAUSE	= 39,
 	GA_IE_REQD_UL_RATE	= 40,