diff --git a/library/GSM_SystemInformation.ttcn b/library/GSM_SystemInformation.ttcn
index 0639eef..3c3d96c 100644
--- a/library/GSM_SystemInformation.ttcn
+++ b/library/GSM_SystemInformation.ttcn
@@ -143,6 +143,10 @@
 		RestOctets			rest_octets length(0..4)
 	} with { variant "" };
 
+	type record SystemInformationType2quater {
+		SI2quaterRestOctets	rest_octets
+	} with { variant "" };
+
 	/* 44.018 9.1.35 */
 	type record SystemInformationType3 {
 		SysinfoCellIdentity		cell_id,
@@ -204,6 +208,7 @@
 		SystemInformationType2		si2,
 		SystemInformationType2bis	si2bis,
 		SystemInformationType2ter	si2ter,
+		SystemInformationType2quater	si2quater,
 		SystemInformationType3		si3,
 		SystemInformationType4		si4,
 		SystemInformationType5		si5,
@@ -220,6 +225,7 @@
 			      si2, header.message_type = SYSTEM_INFORMATION_TYPE_2;
 			      si2bis, header.message_type = SYSTEM_INFORMATION_TYPE_2bis;
 			      si2ter, header.message_type = SYSTEM_INFORMATION_TYPE_2ter;
+			      si2quater, header.message_type = SYSTEM_INFORMATION_TYPE_2quater;
 			      si3, header.message_type = SYSTEM_INFORMATION_TYPE_3;
 			      si4, header.message_type = SYSTEM_INFORMATION_TYPE_4;
 			      si5, header.message_type = SYSTEM_INFORMATION_TYPE_5;