diff --git a/src/window_gui.h b/src/window_gui.h
--- a/src/window_gui.h
+++ b/src/window_gui.h
@@ -17,7 +17,6 @@
 #include "tile_type.h"
 #include "widget_type.h"
 #include "core/smallvec_type.hpp"
-#include "core/smallmap_type.hpp"
 #include "string_type.h"
 
 /**
@@ -250,7 +249,7 @@ public:
 
 	ViewportData *viewport;          ///< Pointer to viewport data, if present.
 	const NWidgetCore *nested_focus; ///< Currently focused nested widget, or \c nullptr if no nested widget has focus.
-	SmallMap<int, QueryString*> querystrings; ///< QueryString associated to WWT_EDITBOX widgets.
+	std::map<int, QueryString*> querystrings; ///< QueryString associated to WWT_EDITBOX widgets.
 	NWidgetBase *nested_root;        ///< Root of the nested tree.
 	NWidgetBase **nested_array;      ///< Array of pointers into the tree. Do not access directly, use #Window::GetWidget() instead.
 	uint nested_array_size;          ///< Size of the nested array.