diff --git a/src/newgrf_roadstop.cpp b/src/newgrf_roadstop.cpp
index 16d38a0991..66c818c5f1 100644
--- a/src/newgrf_roadstop.cpp
+++ b/src/newgrf_roadstop.cpp
@@ -184,6 +184,7 @@ uint32_t RoadStopScopeResolver::GetVariable(uint8_t variable, [[maybe_unused]] u
 
 		/* 16 bit road stop ID of nearby tiles */
 		case 0x6B: {
+			if (this->tile == INVALID_TILE) return 0xFFFFFFFF;
 			TileIndex nearby_tile = GetNearbyTile(parameter, this->tile);
 
 			if (!IsAnyRoadStopTile(nearby_tile)) return 0xFFFFFFFF;