diff --git a/data/json/furniture_and_terrain/terrain-manufactured.json b/data/json/furniture_and_terrain/terrain-manufactured.json
index 7b8f805aacacf..8c7b36c5a3922 100644
--- a/data/json/furniture_and_terrain/terrain-manufactured.json
+++ b/data/json/furniture_and_terrain/terrain-manufactured.json
@@ -374,6 +374,7 @@
     "color": "magenta",
     "move_cost": 0,
     "coverage": 30,
+    "crafting_pseudo_item": "fake_centrifuge",
     "flags": [ "TRANSPARENT", "PERMEABLE" ],
     "bash": {
       "str_min": 3,
diff --git a/data/json/items/fake.json b/data/json/items/fake.json
index 58e7a7614f424..fea85acaecbcf 100644
--- a/data/json/items/fake.json
+++ b/data/json/items/fake.json
@@ -167,5 +167,12 @@
     "range": 100,
     "dispersion": 1000,
     "ranged_damage": { "damage_type": "stab", "amount": 30 }
+  },
+  {
+    "id": "fake_centrifuge",
+    "copy-from": "fake_item",
+    "type": "TOOL",
+    "name": "centrifuge",
+    "qualities": [ [ "SEPARATE", 1 ], [ "ANALYSIS", 1 ] ]
   }
 ]