diff --git a/ggsn_tests/GGSN_Tests.ttcn b/ggsn_tests/GGSN_Tests.ttcn
index 358d756..4a5f0ba 100644
--- a/ggsn_tests/GGSN_Tests.ttcn
+++ b/ggsn_tests/GGSN_Tests.ttcn
@@ -129,11 +129,13 @@
 		var boolean use_gtpu_txseq := false;
 		var integer g_use_echo_intval := 0; /* 0 = disabled */
 
-		/* emulated PCRF, used with m_ggsn_impl = GGSN_IMPL_OPEN5GS */
+		/* Emulated PCRF, used with m_ggsn_impl = GGSN_IMPL_OPEN5GS */
 		var DIAMETER_conn_parameters g_gx_pars;
 		var DIAMETER_Emulation_CT vc_Gx;
 		port DIAMETER_PT Gx_UNIT;
 		port DIAMETEREM_PROC_PT Gx_PROC;
+
+		/* Emulated OCS, used with m_ggsn_impl = GGSN_IMPL_OPEN5GS */
 		var DIAMETER_conn_parameters g_gy_pars;
 		var DIAMETER_Emulation_CT vc_Gy;
 		port DIAMETER_PT Gy_UNIT;