diff --git a/library/SIMTRACE_Templates.ttcn b/library/SIMTRACE_Templates.ttcn
index 934253e..05f738f 100644
--- a/library/SIMTRACE_Templates.ttcn
+++ b/library/SIMTRACE_Templates.ttcn
@@ -216,11 +216,13 @@
 
 template (value) SIMTRACE_PDU
 ts_SIMTRACE_CEMU_CONFIG(template (value) CardEmu_FeatureFlags flags) :=
-	ts_SIMTRACE(SIMTRACE_MSGT_BD_CEMU_CONFIG, { cardem_bd_config := { features := flags } });
+	ts_SIMTRACE(SIMTRACE_MSGT_BD_CEMU_CONFIG, { cardem_bd_config := { features := flags,
+									  slot_mux_nr := 0} });
 
 template (present) SIMTRACE_PDU
 tr_SIMTRACE_CEMU_CONFIG(template (present) CardEmu_FeatureFlags flags) :=
-	tr_SIMTRACE(SIMTRACE_MSGT_BD_CEMU_CONFIG, { cardem_bd_config := { features := flags } });
+	tr_SIMTRACE(SIMTRACE_MSGT_BD_CEMU_CONFIG, { cardem_bd_config := { features := flags,
+									  slot_mux_nr := * } });
 
 
 /***********************************************************************