diff --git a/kipina-codebench/prompts/code-small.md b/kipina-codebench/prompts/code-small.md
index 6c8bd50..f606599 100644
--- a/kipina-codebench/prompts/code-small.md
+++ b/kipina-codebench/prompts/code-small.md
@@ -17,7 +17,7 @@ Key patterns (copy from reference):
 
 FOREIGN KEYS (when spec has relationships):
 - Child entity gets parent_id field: Mapped[int] = mapped_column(ForeignKey("parents.id"))
-- Import ForeignKey: from sqlalchemy import ForeignKey
+- Import: from sqlalchemy import ForeignKey  (NOT from sqlalchemy.orm!)
 - Create schema includes parent_id: int
 - Test creates parent FIRST, then child with parent's id