diff --git a/advtrains_interlocking/routesetting.lua b/advtrains_interlocking/routesetting.lua
index 67efaea..381fa26 100644
--- a/advtrains_interlocking/routesetting.lua
+++ b/advtrains_interlocking/routesetting.lua
@@ -113,6 +113,7 @@ function ilrs.set_route(signal, route, try)
 			if c_tcbs.signal then
 				c_tcbs.route_committed = true
 				c_tcbs.aspect = route.aspect or advtrains.interlocking.GENERIC_FREE
+				c_tcbs.route_rsn = nil
 				c_tcbs.route_origin = signal
 				advtrains.interlocking.update_signal_aspect(c_tcbs)
 			end