1 files changed, 1 insertions, 0 deletions
diff --git a/msetseq b/msetseq
index 03fb512..e404e0f 100755
--- a/msetseq
+++ b/msetseq
@@ -8,5 +8,6 @@ if [ "$1" = -a ]; then
 else
 	cat >"${MAILMAP}-"
 fi
+mv "${MAILMAP}" "${MAILMAP}.old" || true
 mv "${MAILMAP}-" "${MAILMAP}"
 [ -t 1 ] || cat "${MAILMAP}"