diff --git a/data/json/construction/windows.json b/data/json/construction/windows.json
index b5751e7b22a19..78508c60a5f45 100644
--- a/data/json/construction/windows.json
+++ b/data/json/construction/windows.json
@@ -717,7 +717,7 @@
     "required_skills": [ [ "fabrication", 3 ] ],
     "time": "150 m",
     "qualities": [ [ { "id": "HAMMER", "level": 2 } ], [ { "id": "SAW_M", "level": 1 } ] ],
-    "components": [ [ [ "glass_sheet", 3 ] ] ],
+    "components": [ [ [ "glass_sheet", 3 ] ], [ [ "nails", 16, "LIST" ] ], [ [ "2x4", 4 ] ] ],
     "pre_terrain": "t_window_empty",
     "post_terrain": "t_triple_pane_glass"
   },