diff --git a/yadm b/yadm
index 5787d65..37e89a6 100755
--- a/yadm
+++ b/yadm
@@ -21,8 +21,8 @@ fi
 
 VERSION=1.10.0
 
-YADM_WORK="$HOME"
-YADM_DIR="$HOME/.yadm"
+[ -z "$YADM_WORK" ] && YADM_WORK="$HOME"
+[ -z "$YADM_DIR" ] && YADM_DIR="$HOME/.yadm"
 
 YADM_REPO="repo.git"
 YADM_CONFIG="config"