diff --git a/CONTRIBUTING.Sharkey.md b/CONTRIBUTING.Sharkey.md
index 000fd95194..04aab2062c 100644
--- a/CONTRIBUTING.Sharkey.md
+++ b/CONTRIBUTING.Sharkey.md
@@ -273,12 +273,15 @@ To run many of the tests, you need a dedicated database. To set this up:
 3. Start the database container:
 
 	```bash
-	docker compose -f packages/backend/test/compose.yml up
+	docker compose -f packages/backend/test/compose.yml up -d
 	```
 
 Now you can run `pnpm test` and `pnpm --filter=backend test:e2e` to
 run the tests.
 
+To stop the database container, run `docker compose -f
+packages/backend/test/compose.yml up -d down`
+
 ### Environment Variables
 
 - `MISSKEY_CONFIG_DIR` changes the directory where config files are