diff --git a/src/openrct2-ui/windows/Map.cpp b/src/openrct2-ui/windows/Map.cpp
index 8d517d5ce9..371bfa8864 100644
--- a/src/openrct2-ui/windows/Map.cpp
+++ b/src/openrct2-ui/windows/Map.cpp
@@ -136,6 +136,8 @@ static constexpr const ScreenCoordsXY MiniMapOffsets[] = {
 
 class MapWindow final : public Window
 {
+    uint8_t rotation;
+
 public:
     MapWindow()
     {
@@ -152,7 +154,7 @@ public:
 
         InitScrollWidgets();
 
-        map.rotation = get_current_rotation();
+        rotation = get_current_rotation();
 
         InitMap();
         gWindowSceneryRotation = 0;
@@ -318,9 +320,9 @@ public:
 
     void OnUpdate() override
     {
-        if (get_current_rotation() != map.rotation)
+        if (get_current_rotation() != rotation)
         {
-            map.rotation = get_current_rotation();
+            rotation = get_current_rotation();
             InitMap();
             CentreMapOnViewPoint();
         }
diff --git a/src/openrct2/interface/Window.h b/src/openrct2/interface/Window.h
index d0f6b4a2d6..56e4c6b969 100644
--- a/src/openrct2/interface/Window.h
+++ b/src/openrct2/interface/Window.h
@@ -293,15 +293,6 @@ struct news_variables
     uint16_t var_488;
 };
 
-struct map_variables
-{
-    int16_t rotation;
-    int16_t var_482;
-    uint16_t var_484;
-    uint16_t var_486;
-    uint16_t var_488;
-};
-
 struct ride_variables
 {
     int16_t view;
diff --git a/src/openrct2/interface/Window_internal.h b/src/openrct2/interface/Window_internal.h
index 36ed878251..0465568156 100644
--- a/src/openrct2/interface/Window_internal.h
+++ b/src/openrct2/interface/Window_internal.h
@@ -60,7 +60,6 @@ struct rct_window
         campaign_variables campaign;
         new_ride_variables new_ride;
         news_variables news;
-        map_variables map;
         ride_variables ride;
         track_list_variables track_list;
         error_variables error;