diff --git a/janitor/.env.example b/janitor/.env.example
index 1fd72e8..4fba881 100644
--- a/janitor/.env.example
+++ b/janitor/.env.example
@@ -5,5 +5,5 @@ REDIS_PREFIX=bfile-
 
 USERCONTENT_DIR=/opt/user_uploads
 
-CLEAN_DEL=30 minutes
-CLEAN_ERRDEL=2 minutes
+CLEAN_DEL=30min
+CLEAN_ERRDEL=2min