diff --git a/changelog.txt b/changelog.txt
index 228f3ba..8a6ce3f 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -3,6 +3,7 @@ Version: 2.1.6
 Date: 2025-02-20
   Fixes:
     - Space Age: Disable some recipes until appropriate tech is discovered
+    - Plutonium Energy MOX fuel cell uses zirconium
 ---------------------------------------------------------------------------------------------------
 Version: 2.1.5
 Date: 2025-02-13
diff --git a/zirconium-recipe-updates.lua b/zirconium-recipe-updates.lua
index 4bd5f4e..45e0e39 100644
--- a/zirconium-recipe-updates.lua
+++ b/zirconium-recipe-updates.lua
@@ -167,7 +167,9 @@ util.replace_ingredient("empty-fuel-cell-recipe", "iron-plate", nuclear_z)
 
 util.replace_some_ingredient("breeder-fuel-cell", nuclear_plate, 5, nuclear_z, 5) 
 util.replace_some_ingredient("mox-fuel-cell", nuclear_plate, 5, nuclear_z, 5) 
+util.replace_some_ingredient("MOX-fuel-cell", nuclear_plate, 5, nuclear_z, 5) 
 util.replace_some_ingredient("MOX-fuel", nuclear_plate, 5, nuclear_z, 5) 
+util.replace_some_ingredient("mox-fuel", nuclear_plate, 5, nuclear_z, 5) 
 util.add_ingredient("advanced-electric-furnace-rampant-industry", "zirconia", 50)
 
 -- MadClown's Nuclear