diff --git a/plugins/proto/DwarfControl.proto b/plugins/proto/DwarfControl.proto
index ec261b57d..707651079 100644
--- a/plugins/proto/DwarfControl.proto
+++ b/plugins/proto/DwarfControl.proto
@@ -86,4 +86,5 @@ message BuildSelector
     optional int32 radius_x_high = 10;
     optional int32 radius_y_high = 11;
     optional RemoteFortressReader.Coord cursor = 12;
+    repeated int32 tiles = 13;
 }
diff --git a/plugins/remotefortressreader/dwarf_control.cpp b/plugins/remotefortressreader/dwarf_control.cpp
index bb342c575..57c770301 100644
--- a/plugins/remotefortressreader/dwarf_control.cpp
+++ b/plugins/remotefortressreader/dwarf_control.cpp
@@ -291,6 +291,12 @@ void CopyBuildMenu(DwarfControl::SidebarState * out)
             send_cursor->set_y(cursor->y);
             send_cursor->set_z(cursor->z);
         }
+
+        for (int y = 0; y < (y_low + y_high + 1); y++)
+            for (int x = 0; x < (x_low + x_high + 1); x++)
+            {
+                send_selector->add_tiles(build_selector->tiles[x][y]);
+            }
     }
 }