diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 17ad26903..c2e536da5 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -151,6 +151,7 @@ LOG_LEVEL="debug"
 - `ORIGIN`: Origin for CORS purposes
 - `TOKEN_TTL`: Token time to live (in vercel/ms format)
 - `LOG_LEVEL`: Debug level (debug, info, warn, error)
+- `QUEUE_TYPE`: Job queue implementation (`superSimpleQueue` or `lessSimpleQueue`, optional, default: `superSimpleQueue`)
 
 Start the backend server: