diff --git a/helpers/helpers.v2.1.d/logrotate b/helpers/helpers.v2.1.d/logrotate
index 5fce19d0b..cd10e29d6 100644
--- a/helpers/helpers.v2.1.d/logrotate
+++ b/helpers/helpers.v2.1.d/logrotate
@@ -14,7 +14,7 @@ FIRST_CALL_TO_LOGROTATE="true"
 # Requires YunoHost version 2.6.4 or higher.
 ynh_config_add_logrotate() {
 
-    logfile="$1"
+    local logfile="${1:-}"
 
     set -o noglob
     if [[ -z "$logfile" ]]; then