diff --git a/transmission/docker-compose.yml b/transmission/docker-compose.yml
index a64a167..4984735 100644
--- a/transmission/docker-compose.yml
+++ b/transmission/docker-compose.yml
@@ -18,7 +18,7 @@ services:
       - '${DIR_DOWNLOAD_EXT:-./downloads}:${DIR_DOWNLOAD_INT:-/downloads}'
       # Separate download cache directory in case you store unfinished torrents on SSD
       # Use with `"incomplete-dir-enabled": true` in the settings.json. This is `incomplete-dir` parameter.
-      - '${DIR_TMP_DOWNLOAD:-/dev/null}:${DIR_TMP_DOWNLOAD:-/dev/null}'
+      - '${DIR_TMP_DOWNLOAD_EXT:-/dev/null}:${DIR_TMP_DOWNLOAD_INT:-/dev/null}'
       - '${DIR_WATCH_EXT:-./watch}:/watch'
     network_mode: '${NETWORK_MODE:-bridge}'
     ports: