diff --git a/README.md b/README.md
index 0373f97..c69dc53 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,7 @@ $ docker run --privileged  -d \
 |`NAME_SERVERS`| No | Comma delimited name servers |`NAME_SERVERS=8.8.8.8,8.8.4.4`|
 |`PUID`| No | UID applied to config files and downloads |`PUID=99`|
 |`PGID`| No | GID applied to config files and downloads |`PGID=100`|
+|`UMASK`| No | GID applied to config files and downloads |`UMASK=002`|
 |`WEBUI_PORT_ENV`| No | Applies WebUI port to qBittorrents config at boot (Must change exposed ports to match)  |`WEBUI_PORT_ENV=8080`|
 |`INCOMING_PORT_ENV`| No | Applies Incoming port to qBittorrents config at boot (Must change exposed ports to match) |`INCOMING_PORT_ENV=8999`|