diff --git a/docs/index.md b/docs/index.md
index 84eb5b07f30c36b4812a5af2eeb5e4bfa4ba7718..65807987d161d6cd0538758b1973bdac57dbcb76 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -224,7 +224,7 @@ The `phen` command is used phenotype-related operations.
 ## Commit Message Guidelines
 - Use clear and descriptive commit messages.
 - Format: `<type>(<scope>): <description>`
-- Example: `docs (documentation): git workflow documentation`
+- Example: `docs (documentation): git workflow documentation (#issue)`
 - Types: `feat` (feature), `fix` (bug fix), `docs` (documentation), `refactor` (code refactoring), `test` (tests), `chore` (maintenance).
 
 ## Additional Guidelines