diff --git a/src/industry_gui.cpp b/src/industry_gui.cpp
--- a/src/industry_gui.cpp
+++ b/src/industry_gui.cpp
@@ -2564,7 +2564,7 @@ struct IndustryCargoesWindow : public Wi
 
 			case CFT_INDUSTRY:
 				if (fld->u.industry.ind_type < NUM_INDUSTRYTYPES && (this->ind_cargo >= NUM_INDUSTRYTYPES || fieldxy.x != 2)) {
-					GuiShowTooltips(STR_INDUSTRY_CARGOES_INDUSTRY_TOOLTIP, 0, NULL, TCC_HOVER);
+					GuiShowTooltips(this, STR_INDUSTRY_CARGOES_INDUSTRY_TOOLTIP, 0, NULL, TCC_HOVER);
 				}
 				return;
 
@@ -2575,7 +2575,7 @@ struct IndustryCargoesWindow : public Wi
 			const CargoSpec *csp = CargoSpec::Get(cid);
 			uint64 params[5];
 			params[0] = csp->name;
-			GuiShowTooltips(STR_INDUSTRY_CARGOES_CARGO_TOOLTIP, 1, params, TCC_HOVER);
+			GuiShowTooltips(this, STR_INDUSTRY_CARGOES_CARGO_TOOLTIP, 1, params, TCC_HOVER);
 		}
 	}