diff --git a/src/signal_type.h b/src/signal_type.h
--- a/src/signal_type.h
+++ b/src/signal_type.h
@@ -27,9 +27,12 @@ enum SignalType {
 	SIGTYPE_COMBO      = 3, ///< presignal inter-block
 	SIGTYPE_PBS        = 4, ///< normal pbs signal
 	SIGTYPE_PBS_ONEWAY = 5, ///< no-entry signal
+
+	SIGTYPE_END,
 	SIGTYPE_LAST       = SIGTYPE_PBS_ONEWAY,
 	SIGTYPE_LAST_NOPBS = SIGTYPE_COMBO
 };
+template <> struct EnumPropsT<SignalType> : MakeEnumPropsT<SignalType, byte, SIGTYPE_NORMAL, SIGTYPE_END, SIGTYPE_END, 3> {};
 
 
 #endif /* SIGNAL_TYPE_H */