diff --git a/figures/step33/head_reuse.png b/figures/step33/head_reuse.png
index a2c75b0..72488b8 100644
Binary files a/figures/step33/head_reuse.png and b/figures/step33/head_reuse.png differ
diff --git a/lib/rebrickable/head_reuse.py b/lib/rebrickable/head_reuse.py
index 3c96b14..ccc97b9 100644
--- a/lib/rebrickable/head_reuse.py
+++ b/lib/rebrickable/head_reuse.py
@@ -31,6 +31,8 @@ def build_head_presence(
     parts_by_inventory = index_inventory_parts_by_inventory(inventory_parts_path)
     presence: Dict[str, Set[str]] = {}
     for set_num, inventory in inventories.items():
+        if set_num.startswith("fig-"):
+            continue
         parts = parts_by_inventory.get(inventory["id"], [])
         for part_row in parts:
             if part_row["part_num"] not in head_parts: