diff --git a/README.md b/README.md
index 87a3b9c..ddf1de5 100644
--- a/README.md
+++ b/README.md
@@ -324,6 +324,8 @@ export default function SourceLink() {
 }
 ```
 
+> **Note:** Ensure `NEXT_PUBLIC_GIT_SHA` is set in your build environment (e.g., `NEXT_PUBLIC_GIT_SHA=$(git rev-parse --short HEAD) bun run build`) so the link points to the exact deployed commit.
+
 ---
 
 ## Status