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-rw-r--r--src/tunnelbridge_cmd.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/tunnelbridge_cmd.cpp b/src/tunnelbridge_cmd.cpp
index be686c05c..4bfbf9b1b 100644
--- a/src/tunnelbridge_cmd.cpp
+++ b/src/tunnelbridge_cmd.cpp
@@ -207,7 +207,7 @@ CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, u
switch (transport_type) {
case TRANSPORT_ROAD:
roadtypes = (RoadTypes)GB(p2, 8, 2);
- if (!AreValidRoadTypes(roadtypes) || !HasRoadTypesAvail(_current_company, roadtypes)) return CMD_ERROR;
+ if (!HasExactlyOneBit(roadtypes) || !HasRoadTypesAvail(_current_company, roadtypes)) return CMD_ERROR;
break;
case TRANSPORT_RAIL:
@@ -487,7 +487,7 @@ CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1,
if (!ValParamRailtype((RailType)p1)) return CMD_ERROR;
} else {
const RoadTypes rts = (RoadTypes)GB(p1, 0, 2);
- if (!AreValidRoadTypes(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
+ if (!HasExactlyOneBit(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
}
uint start_z;