diff --git a/handlers/dup.in b/handlers/dup.in
index 1ce7710ccdf0b7e4c85ed2d1e47f7cdb731dd834..18afb98016c810bff31b38c72d842b4cc1c48cd1 100644
--- a/handlers/dup.in
+++ b/handlers/dup.in
@@ -191,7 +191,7 @@ else
 fi
 
 ### Cleanup options
-if [ "$duplicity_major" -le 0 -a "$duplicity_minor" -le 6 -a "$duplicity_sub" -le 19 ]; then
+if ! [ "$duplicity_major" -ge 0 -a "$duplicity_minor" -ge 6 -a "$duplicity_sub" -ge 20 ]; then
    execstr_options="${execstr_options} --extra-clean"
 fi