diff --git a/changelog.txt b/changelog.txt
index e4f8f761..5defa177 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -3,6 +3,7 @@ Version: 3.0.45
 Date: ???
   Changes:
     - Updated German locale courtesy of CarstenG
+    - Added module slots to botanical nursery. Resolves https://github.com/pyanodon/pybugreports/issues/555
     - Fixed that the upgrade_target for the mechanical inserter was not set. Resolves https://github.com/pyanodon/pybugreports/issues/1323
     - Fixed AM/FM text in beacon GUI not being localizable, again. Resolves https://github.com/pyanodon/pybugreports/issues/1337
     - Fixed Dutch locale translating two fluids to the same name. Resolves https://github.com/pyanodon/pybugreports/issues/1305
diff --git a/prototypes/buildings/botanical-nursery.lua b/prototypes/buildings/botanical-nursery.lua
index cdd489ad..3d4eecae 100644
--- a/prototypes/buildings/botanical-nursery.lua
+++ b/prototypes/buildings/botanical-nursery.lua
@@ -75,7 +75,7 @@ for i = 1, 4 do
         collision_box = {{-3.3, -3.3}, {3.3, 3.3}},
         selection_box = {{-3.5, -3.5}, {3.5, 3.5}},
         forced_symmetry = "diagonal-pos",
-        module_slots = 0,
+        module_slots = i,
         allowed_effects = {"speed", "productivity", "consumption", "pollution", "quality"},
         crafting_categories = {"nursery"},
         crafting_speed = i,