diff --git a/gm4_tunnel_bores/data/gm4_tunnel_bores/tags/block/not_rail_solid.json b/gm4_tunnel_bores/data/gm4_tunnel_bores/tags/block/not_rail_solid.json
index f0d75260b8..df317c9dd7 100644
--- a/gm4_tunnel_bores/data/gm4_tunnel_bores/tags/block/not_rail_solid.json
+++ b/gm4_tunnel_bores/data/gm4_tunnel_bores/tags/block/not_rail_solid.json
@@ -143,7 +143,7 @@
     "minecraft:crimson_roots",
     "minecraft:warped_roots",
     "minecraft:nether_sprouts",
-    "minecraft:chain",
+    "minecraft:iron_chain",
     "minecraft:warped_fence",
     "minecraft:crimson_fence_gate",
     "minecraft:sweet_berry_bush",