diff --git a/src/wuttjamaican/db/util.py b/src/wuttjamaican/db/util.py
index 2d72569..48703ab 100644
--- a/src/wuttjamaican/db/util.py
+++ b/src/wuttjamaican/db/util.py
@@ -126,6 +126,8 @@ def uuid_column(*args, **kwargs):
     kwargs.setdefault("primary_key", True)
     kwargs.setdefault("nullable", False)
     kwargs.setdefault("default", make_true_uuid)
+    if kwargs["primary_key"]:
+        kwargs.setdefault("doc", "UUID primary key for the table.")
     return sa.Column(*args, **kwargs)