--- a/src/ai/api/ai_tile.cpp	Sun May 18 16:50:49 2008 +0000
+++ b/src/ai/api/ai_tile.cpp	Mon May 19 14:06:55 2008 +0000
@@ -134,14 +134,14 @@
 {
 	EnforcePrecondition(false, ::IsValidTile(tile));
 
-	return AIObject::DoCommand(tile, slope, 1, CMD_TERRAFORM_LAND);
+	return AIObject::DoCommand(tile, slope, 1, CMD_TERRAFORM_LAND, false);
 }
 
 /* static */ bool AITile::LowerTile(TileIndex tile, int32 slope)
 {
 	EnforcePrecondition(false, ::IsValidTile(tile));
 
-	return AIObject::DoCommand(tile, slope, 0, CMD_TERRAFORM_LAND);
+	return AIObject::DoCommand(tile, slope, 0, CMD_TERRAFORM_LAND, false);
 }
 
 /* static */ bool AITile::DemolishTile(TileIndex tile)