1 files changed, 13 insertions, 0 deletions
diff --git a/src/autoreplace_gui.cpp b/src/autoreplace_gui.cpp
index 3ea1cbdb4..9c6eb3466 100644
--- a/src/autoreplace_gui.cpp
+++ b/src/autoreplace_gui.cpp
@@ -23,6 +23,19 @@
 #include "table/sprites.h"
 #include "table/strings.h"
 
+struct replaceveh_d {
+	byte sel_index[2];
+	EngineID sel_engine[2];
+	uint16 count[2];
+	bool wagon_btnstate; ///< true means engine is selected
+	EngineList list[2];
+	bool update_left;
+	bool update_right;
+	bool init_lists;
+	GroupID sel_group;
+};
+assert_compile(WINDOW_CUSTOM_SIZE >= sizeof(replaceveh_d));
+
 static RailType _railtype_selected_in_replace_gui;
 
 static bool _rebuild_left_list;