diff --git a/src/gsm/gsm29118.c b/src/gsm/gsm29118.c
index de625a9..3898be6 100644
--- a/src/gsm/gsm29118.c
+++ b/src/gsm/gsm29118.c
@@ -32,6 +32,41 @@
 	{ 0, NULL }
 };
 
+const struct value_string sgsap_iei_names[] = {
+	{ SGSAP_IE_IMSI,			"IMSI" },
+	{ SGSAP_IE_VLR_NAME,			"VLR-NAME" },
+	{ SGSAP_IE_TMSI,			"TMSI" },
+	{ SGSAP_IE_LAI,				"LAI" },
+	{ SGSAP_IE_CHAN_NEEDED,			"CHAN-NEEDED" },
+	{ SGSAP_IE_EMLPP_PRIORITY,		"EMLPP-PRIORITY" },
+	{ SGSAP_IE_TMSI_STATUS,			"TMSI-STATUS" },
+	{ SGSAP_IE_SGS_CAUSE,			"SGS-CAUSE" },
+	{ SGSAP_IE_MME_NAME,			"MME-NAME" },
+	{ SGSAP_IE_EPS_LU_TYPE,			"EPS-LU-TYPE" },
+	{ SGSAP_IE_GLOBAL_CN_ID,		"GLOBAL-CN-ID" },
+	{ SGSAP_IE_MOBILE_ID,			"MOBILE-ID" },
+	{ SGSAP_IE_REJECT_CAUSE,		"REJECT-CAUSE" },
+	{ SGSAP_IE_IMSI_DET_EPS_TYPE,		"IMSI-DET-EPS-TYPE" },
+	{ SGSAP_IE_IMSI_DET_NONEPS_TYPE,	"IMSI-DET-NONEPS-TYPE" },
+	{ SGSAP_IE_IMEISV,			"IMEISV" },
+	{ SGSAP_IE_NAS_MSG_CONTAINER,		"NAS-MSG-CONTAINER" },
+	{ SGSAP_IE_MM_INFO,			"MM-INFO" },
+	{ SGSAP_IE_ERR_MSG,			"ERR-MSG" },
+	{ SGSAP_IE_CLI,				"CLI" },
+	{ SGSAP_IE_LCS_CLIENT_ID,		"LCS-CLIENT-ID" },
+	{ SGSAP_IE_LCS_INDICATOR,		"LCS-INDICATOR" },
+	{ SGSAP_IE_SS_CODE,			"SS-CODE" },
+	{ SGSAP_IE_SERVICE_INDICATOR,		"SERVICE-INDICATOR" },
+	{ SGSAP_IE_UE_TIMEZONE,			"UE-TIMEZONE" },
+	{ SGSAP_IE_MS_CLASSMARK2,		"MS-CLASSMARK2" },
+	{ SGSAP_IE_TAI,				"TAI" },
+	{ SGSAP_IE_EUTRAN_CGI,			"EUTRAN-CGI" },
+	{ SGSAP_IE_UE_EMM_MODE,			"UE-EMM-MODE" },
+	{ SGSAP_IE_ADDL_PAGING_INDICATORS,	"ADDL-PAGING-INDICATORS" },
+	{ SGSAP_IE_TMSI_BASED_NRI_CONT,		"TMSI-BASED-NRI-CONT" },
+	{ 0, NULL }
+};
+
 const struct value_string sgsap_eps_lu_type_names[] = {
 	{ SGSAP_EPS_LUT_IMSI_ATTACH,	"IMSI Attach" },
 	{ SGSAP_EPS_LUT_NORMAL,		"Normal" },
diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index 4813e13..6234d94 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -512,6 +512,7 @@
 osmo_oap_client_register;
 
 sgsap_msg_type_names;
+sgsap_iei_names;
 sgsap_eps_lu_type_names;
 sgsap_ismi_det_eps_type_names;
 sgsap_ismi_det_noneps_type_names;