diff --git a/kubejs/data/tfc/tags/worldgen/placed_feature/in_biome/veins.json b/kubejs/data/tfc/tags/worldgen/placed_feature/in_biome/veins.json
index 126f11a02..8bdce91ac 100644
--- a/kubejs/data/tfc/tags/worldgen/placed_feature/in_biome/veins.json
+++ b/kubejs/data/tfc/tags/worldgen/placed_feature/in_biome/veins.json
@@ -2,5 +2,7 @@
     "__comment__": "This file was automatically created by mcresources",
     "replace": true,
     "values": [
+      "tfc:vein/surface_bismuthinite",
+      "tfc:vein/surface_cassiterite"
     ]
   }
\ No newline at end of file