diff --git a/message_ix_models/tests/model/test_bare.py b/message_ix_models/tests/model/test_bare.py
index 91bb02fb7a..727f5bc310 100644
--- a/message_ix_models/tests/model/test_bare.py
+++ b/message_ix_models/tests/model/test_bare.py
@@ -6,7 +6,7 @@
 
 #: Number of items in the respective YAML files.
 SET_SIZE = dict(
-    commodity=17,
+    commodity=18,
     level=6,
     node=14 + 1,  # R14 is default, and 'World' exists automatically
     relation=20,