diff --git a/kubejs/assets/gtceu/lang/en_us.json b/kubejs/assets/gtceu/lang/en_us.json
index 35bf70759..08e3e5048 100644
--- a/kubejs/assets/gtceu/lang/en_us.json
+++ b/kubejs/assets/gtceu/lang/en_us.json
@@ -155,6 +155,7 @@
   "material.gtceu.plutonium_pellet": "Plutonium Pellet",
   "material.gtceu.uranium_pellet": "Uranium Pellet",
   "material.gtceu.thorium_pellet": "Thorium Pellet",
+  "material.gtceu.ostrum_iodide": "Ostrum Iodide",
   "material.gtceu.residual_radioactive_concoction": "Residual Radioactive Concoction",
   "material.gtceu.regolith_vapor": "Regolith Vapor",
   "material.gtceu.dense_ostrum_vapor": "Dense Ostrum Vapor",