diff --git a/src/zoning_cmd.cpp b/src/zoning_cmd.cpp
index 1879e5a582..04787bc94a 100644
--- a/src/zoning_cmd.cpp
+++ b/src/zoning_cmd.cpp
@@ -267,7 +267,7 @@ SpriteID TileZoneCheckTraceRestrictEvaluation(TileIndex tile, Owner owner)
 	if (IsTileType(tile, MP_RAILWAY) && HasSignals(tile) && IsRestrictedSignal(tile)) {
 		return SPR_ZONING_INNER_HIGHLIGHT_RED;
 	}
-	if (IsTunnelBridgeWithSignalSimulation(tile)) {
+	if (IsTunnelBridgeWithSignalSimulation(tile) && IsTunnelBridgeRestrictedSignal(tile)) {
 		return SPR_ZONING_INNER_HIGHLIGHT_RED;
 	}
 	if (unlikely(HasBit(_misc_debug_flags, MDF_ZONING_RS_WATER_FLOOD_STATE)) && IsNonFloodingWaterTile(tile)) {