diff --git a/lignumis/scripts/wooden-rocket-silo.lua b/lignumis/scripts/wooden-rocket-silo.lua
index 0693d13..dd64fbc 100644
--- a/lignumis/scripts/wooden-rocket-silo.lua
+++ b/lignumis/scripts/wooden-rocket-silo.lua
@@ -64,12 +64,13 @@ local function on_gui_opened(event)
     if not entity or not entity.valid then return end
     if entity.name ~= "provisional-rocket-silo-ready" then return end
     local player = game.get_player(event.player_index)
-    if player.controller_type ~= defines.controllers.character then return end
 
     if player.gui.relative["provisional-rocket-silo-relative-frame"] then
         player.gui.relative["provisional-rocket-silo-relative-frame"].destroy()
     end
 
+    if player.controller_type ~= defines.controllers.character then return end
+
     build_gui(player, entity)
 end