diff --git a/src/depot_gui.cpp b/src/depot_gui.cpp
--- a/src/depot_gui.cpp
+++ b/src/depot_gui.cpp
@@ -835,7 +835,7 @@ struct DepotWindow : Window {
 		uint64 args[2];
 		args[0] = (whole_chain ? num : v->engine_type);
 		args[1] = (uint64)(size_t)details;
-		GuiShowTooltips(whole_chain ? STR_DEPOT_VEHICLE_TOOLTIP_CHAIN : STR_DEPOT_VEHICLE_TOOLTIP, 2, args, TCC_RIGHT_CLICK);
+		GuiShowTooltips(this, whole_chain ? STR_DEPOT_VEHICLE_TOOLTIP_CHAIN : STR_DEPOT_VEHICLE_TOOLTIP, 2, args, TCC_RIGHT_CLICK);
 
 		return true;
 	}
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);
 		}
 	}
 
diff --git a/src/misc_gui.cpp b/src/misc_gui.cpp
--- a/src/misc_gui.cpp
+++ b/src/misc_gui.cpp
@@ -822,8 +822,9 @@ struct TooltipsWindow : public Window
 	uint64 params[5];                 ///< The string parameters.
 	TooltipCloseCondition close_cond; ///< Condition for closing the window.
 
-	TooltipsWindow(StringID str, uint paramcount, const uint64 params[], TooltipCloseCondition close_tooltip) : Window()
+	TooltipsWindow(Window *parent, StringID str, uint paramcount, const uint64 params[], TooltipCloseCondition close_tooltip) : Window()
 	{
+		this->parent = parent;
 		this->string_id = str;
 		assert_compile(sizeof(this->params[0]) == sizeof(params[0]));
 		assert(paramcount <= lengthof(this->params));
@@ -901,18 +902,19 @@ struct TooltipsWindow : public Window
 
 /**
  * Shows a tooltip
+ * @param parent The window this tooltip is related to.
  * @param str String to be displayed
  * @param paramcount number of params to deal with
  * @param params (optional) up to 5 pieces of additional information that may be added to a tooltip
  * @param use_left_mouse_button close the tooltip when the left (true) or right (false) mousebutton is released
  */
-void GuiShowTooltips(StringID str, uint paramcount, const uint64 params[], TooltipCloseCondition close_tooltip)
+void GuiShowTooltips(Window *parent, StringID str, uint paramcount, const uint64 params[], TooltipCloseCondition close_tooltip)
 {
 	DeleteWindowById(WC_TOOLTIPS, 0);
 
 	if (str == STR_NULL) return;
 
-	new TooltipsWindow(str, paramcount, params, close_tooltip);
+	new TooltipsWindow(parent, str, paramcount, params, close_tooltip);
 }
 
 /* Delete a character at the caret position in a text buf.
diff --git a/src/viewport.cpp b/src/viewport.cpp
--- a/src/viewport.cpp
+++ b/src/viewport.cpp
@@ -2058,7 +2058,7 @@ void UpdateTileSelection()
 static inline void ShowMeasurementTooltips(StringID str, uint paramcount, const uint64 params[], TooltipCloseCondition close_cond = TCC_LEFT_CLICK)
 {
 	if (!_settings_client.gui.measure_tooltip) return;
-	GuiShowTooltips(str, paramcount, params, close_cond);
+	GuiShowTooltips(FindWindowById(_thd.window_class, _thd.window_number), str, paramcount, params, close_cond);
 }
 
 /** highlighting tiles while only going over them with the mouse */
diff --git a/src/window.cpp b/src/window.cpp
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -406,7 +406,7 @@ static void DispatchRightClickEvent(Wind
 		if (w->OnRightClick(pt, wid->index)) return;
 	}
 
-	if (_settings_client.gui.hover_delay == 0 && wid->tool_tip != 0) GuiShowTooltips(wid->tool_tip, 0, NULL, TCC_RIGHT_CLICK);
+	if (_settings_client.gui.hover_delay == 0 && wid->tool_tip != 0) GuiShowTooltips(w, wid->tool_tip, 0, NULL, TCC_RIGHT_CLICK);
 }
 
 /**
@@ -424,7 +424,7 @@ static void DispatchHoverEvent(Window *w
 
 	/* Show the tooltip if there is any */
 	if (wid->tool_tip != 0) {
-		GuiShowTooltips(wid->tool_tip);
+		GuiShowTooltips(w, wid->tool_tip);
 		return;
 	}
 
diff --git a/src/window_gui.h b/src/window_gui.h
--- a/src/window_gui.h
+++ b/src/window_gui.h
@@ -792,7 +792,7 @@ enum TooltipCloseCondition {
 	TCC_HOVER,
 };
 
-void GuiShowTooltips(StringID str, uint paramcount = 0, const uint64 params[] = NULL, TooltipCloseCondition close_tooltip = TCC_HOVER);
+void GuiShowTooltips(Window *parent, StringID str, uint paramcount = 0, const uint64 params[] = NULL, TooltipCloseCondition close_tooltip = TCC_HOVER);
 
 /* widget.cpp */
 int GetWidgetFromPos(const Window *w, int x, int y);