diff --git a/prototypes/fission/fi_modules.lua b/prototypes/fission/fi_modules.lua
index 8188863..214b067 100644
--- a/prototypes/fission/fi_modules.lua
+++ b/prototypes/fission/fi_modules.lua
@@ -48,7 +48,10 @@ local limitation_list = {
     'fi_strong_acid_recipe',
     'fi_refinery_basic_recipe',
     'fi_refinery_coal_recipe',
-    'fi_refinery_sulfur_recipe'
+    'fi_refinery_sulfur_recipe',
+    'fi_refinery_kerosene_coal_recipe',
+    'fi_refinery_kerosene_recipe',
+    'fi_empty_solution_recipe'
 }
 
 --item
diff --git a/prototypes/fission/fi_refinery.lua b/prototypes/fission/fi_refinery.lua
index dc85dc6..f456e3f 100644
--- a/prototypes/fission/fi_refinery.lua
+++ b/prototypes/fission/fi_refinery.lua
@@ -55,7 +55,7 @@ data:extend({
               0,
               0.8
             },
-            module_slots = 2
+            module_slots = 4
         },
 
         fluid_boxes = {