diff --git a/library/GSM_RR_Types.ttcn b/library/GSM_RR_Types.ttcn
index e4c0d5796..c2c9d1b2a 100644
--- a/library/GSM_RR_Types.ttcn
+++ b/library/GSM_RR_Types.ttcn
@@ -850,10 +850,10 @@ module GSM_RR_Types {
 	} with { variant "" };
 
 	type union RrL3Union {
-		PagingResponse	paging_response,
-		MeasurementReport meas_rep,
-		AssignmentCommand ass_cmd,
-		octetstring	other
+		PagingResponse		paging_response,
+		MeasurementReport	meas_rep,
+		AssignmentCommand	ass_cmd,
+		octetstring		other
 	};
 
 	type record GsmRrL3Message {