diff --git a/src/station_cmd.cpp b/src/station_cmd.cpp
--- a/src/station_cmd.cpp
+++ b/src/station_cmd.cpp
@@ -2386,7 +2386,7 @@ CommandCost CmdBuildDock(TileIndex tile,
 	direction = ReverseDiagDir(direction);
 
 	/* Docks cannot be placed on rapids */
-	if (IsWaterTile(tile)) return_cmd_error(STR_ERROR_SITE_UNSUITABLE);
+	if (HasTileWaterGround(tile)) return_cmd_error(STR_ERROR_SITE_UNSUITABLE);
 
 	CommandCost ret = CheckIfAuthorityAllowsNewStation(tile, flags);
 	if (ret.Failed()) return ret;