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-rw-r--r--src/terraform_cmd.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/terraform_cmd.cpp b/src/terraform_cmd.cpp
index 1f2847512..9241958cd 100644
--- a/src/terraform_cmd.cpp
+++ b/src/terraform_cmd.cpp
@@ -316,7 +316,7 @@ CommandCost CmdTerraformLand(TileIndex tile, DoCommandFlag flags, uint32 p1, uin
return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
}
/* Check if tunnel would take damage */
- if (direction == -1 && IsTunnelInWay(tile, z_min * TILE_HEIGHT)) {
+ if (direction == -1 && IsTunnelInWay(tile, z_min)) {
_terraform_err_tile = tile; // highlight the tile above the tunnel
return_cmd_error(STR_ERROR_EXCAVATION_WOULD_DAMAGE);
}