diff --git a/src/industry_gui.cpp b/src/industry_gui.cpp
--- a/src/industry_gui.cpp
+++ b/src/industry_gui.cpp
@@ -328,7 +328,7 @@ public:
 						_generating_world = false;
 					}
 				} else if (_game_mode != GM_EDITOR && _settings_game.construction.raw_industry_construction == 2 && GetIndustrySpec(this->selected_type)->IsRawIndustry()) {
-					DoCommandP(0, this->selected_type, InteractiveRandom(), NULL, CMD_BUILD_INDUSTRY | CMD_MSG(STR_4830_CAN_T_CONSTRUCT_THIS_INDUSTRY));
+					DoCommandP(0, this->selected_type, InteractiveRandom(), CMD_BUILD_INDUSTRY | CMD_MSG(STR_4830_CAN_T_CONSTRUCT_THIS_INDUSTRY));
 					this->HandleButtonClick(DPIW_FUND_WIDGET);
 				} else {
 					HandlePlacePushButton(this, DPIW_FUND_WIDGET, SPR_CURSOR_INDUSTRY, VHM_RECT, NULL);
@@ -362,7 +362,7 @@ public:
 			_current_company = OWNER_NONE;
 			_generating_world = true;
 			_ignore_restrictions = true;
-			success = DoCommandP(tile, (InteractiveRandomRange(indsp->num_table) << 16) | this->selected_type, seed, NULL, CMD_BUILD_INDUSTRY | CMD_MSG(STR_4830_CAN_T_CONSTRUCT_THIS_INDUSTRY));
+			success = DoCommandP(tile, (InteractiveRandomRange(indsp->num_table) << 16) | this->selected_type, seed, CMD_BUILD_INDUSTRY | CMD_MSG(STR_4830_CAN_T_CONSTRUCT_THIS_INDUSTRY));
 			if (!success) {
 				SetDParam(0, indsp->name);
 				ShowErrorMessage(_error_message, STR_0285_CAN_T_BUILD_HERE, pt.x, pt.y);
@@ -371,7 +371,7 @@ public:
 			_ignore_restrictions = false;
 			_generating_world = false;
 		} else {
-			success = DoCommandP(tile, (InteractiveRandomRange(indsp->num_table) << 16) | this->selected_type, seed, NULL, CMD_BUILD_INDUSTRY | CMD_MSG(STR_4830_CAN_T_CONSTRUCT_THIS_INDUSTRY));
+			success = DoCommandP(tile, (InteractiveRandomRange(indsp->num_table) << 16) | this->selected_type, seed, CMD_BUILD_INDUSTRY | CMD_MSG(STR_4830_CAN_T_CONSTRUCT_THIS_INDUSTRY));
 		}
 
 		/* If an industry has been built, just reset the cursor and the system */