diff --git a/duplicity-backup.sh b/duplicity-backup.sh
index 4447d64..1a093f9 100755
--- a/duplicity-backup.sh
+++ b/duplicity-backup.sh
@@ -788,5 +788,6 @@ unset AWS_ACCESS_KEY_ID
 unset AWS_SECRET_ACCESS_KEY
 unset PASSPHRASE
 unset SIGN_PASSPHRASE
+unset FTP_PASSWORD
 
 # vim: set tabstop=2 shiftwidth=2 sts=2 autoindent smartindent: