diff --git a/library/RSL_Types.ttcn b/library/RSL_Types.ttcn
index ff0e2e5..77b4e79 100644
--- a/library/RSL_Types.ttcn
+++ b/library/RSL_Types.ttcn
@@ -1,6 +1,6 @@
 module RSL_Types {
 
-/* GSUP_Types, defining abstract TTCN-3 data types for the A-bis RSL protocol.
+/* RSL types defining abstract TTCN-3 data types for the A-bis RSL protocol.
  *
  * RSL is a 3GPP standard protocol used between BTS and BSC in a GSM network.
  *