diff --git a/handlers/dup.helper.in b/handlers/dup.helper.in
index 38a57c04e4fdef4204809ffe89a41a06744ec742..7f82c2fba18cac3ac20b770c6b2dd45df721f94f 100644
--- a/handlers/dup.helper.in
+++ b/handlers/dup.helper.in
@@ -545,6 +545,7 @@ dup_wizard() {
    dup_incremental=yes
    dup_increments=30
    dup_keep=60
+   dup_keepincroffulls=
    dup_bandwidth=
    dup_sshoptions=
    dup_destdir="/backups/`hostname`"