diff --git a/roles/common/files/backup_rename.sh b/roles/common/files/backup_rename.sh
index 0289549..65bab34 100644
--- a/roles/common/files/backup_rename.sh
+++ b/roles/common/files/backup_rename.sh
@@ -5,6 +5,6 @@ set -euxo pipefail;
 dir="$(dirname "$1")";
 date="$(date +%Y-%m-%d-%H-%M)";
 name="$(basename "$1")";
-ext="${name##*.}";
+ext="${name##latest.}";
 
 mv "$1" "$dir/$date.$ext";