diff --git a/changelog.txt b/changelog.txt
index 851b2ff..57640fd 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -13,6 +13,7 @@ Date: 13.5.2022
     - reduced stack sizes of energy crystals and diesel fuels
     - increased stack size of neutron canisters
     - adjusted fusion reactor fluid inputs
+    - increased Item/fluid handler module slots
 
 ---------------------------------------------------------------------------------------------------
 Version: 1.0.20
diff --git a/prototypes/fusion/fu_burner.lua b/prototypes/fusion/fu_burner.lua
index b45c902..827c92e 100644
--- a/prototypes/fusion/fu_burner.lua
+++ b/prototypes/fusion/fu_burner.lua
@@ -54,7 +54,7 @@ data:extend({
               0,
               0.8
             },
-            module_slots = 2
+            module_slots = 4
         },
     crafting_speed = 1,
     energy_usage = '500KW',