diff --git a/changelog.txt b/changelog.txt
index f8da7654..397a9719 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -3,6 +3,7 @@ Version: 3.0.23
 Date: ?
   Changes:
     - fungal-substrate-01, fungal-substrate-02, fungal-substrate-03 are now affected by productivity modules.
+    - The serine recipe is now effected by productivity modules.
   TURD:
     - Rebalanced the turd reset technology scaling factor from 2^N to 1.5^N.
     - Rebalanced mukmoux turds. Path 1 recipe values adjusted.
diff --git a/prototypes/updates/pyfusionenergy-updates.lua b/prototypes/updates/pyfusionenergy-updates.lua
index 5e38d944..ccd4583a 100644
--- a/prototypes/updates/pyfusionenergy-updates.lua
+++ b/prototypes/updates/pyfusionenergy-updates.lua
@@ -31,6 +31,7 @@ RECIPE("log7"):add_ingredient {type = "item", name = "wood-seedling", amount = 3
 RECIPE("zogna-bacteria"):add_ingredient {type = "fluid", name = "pressured-air", amount = 50}
 RECIPE("bacteria-1"):remove_unlock("ethanolamine"):add_unlock("kmauts"):subgroup_order("py-alienlife-genetics", "b"):add_ingredient {type = "item", name = "petri-dish", amount = 3}
 RECIPE("serine"):remove_unlock("helium-processing"):add_unlock("kmauts"):subgroup_order("py-alienlife-kmauts", "b"):add_ingredient {type = "item", name = "tendon", amount = 5}:add_ingredient {type = "fluid", name = "zogna-bacteria", amount = 40}:remove_ingredient("kmauts-ration").category = "bio-reactor"
+RECIPE("serine").allow_productivity = true
 ITEM("serine"):subgroup_order("py-alienlife-kmauts", "b")
 ITEM("kmauts-ration"):subgroup_order("py-alienlife-food", "b")
 RECIPE("nenbit-matrix"):add_ingredient {type = "item", name = "nano-cellulose", amount = 3}