diff --git a/package/share/ahriman/templates/utils/bootstrap-scripts.jinja2 b/package/share/ahriman/templates/utils/bootstrap-scripts.jinja2
index 60064ec8..c8c48259 100644
--- a/package/share/ahriman/templates/utils/bootstrap-scripts.jinja2
+++ b/package/share/ahriman/templates/utils/bootstrap-scripts.jinja2
@@ -83,6 +83,6 @@
 
     Date.prototype.toISOStringShort = function() {
         const pad = number => String(number).padStart(2, "0");
-        return `${this.getFullYear()}-${pad(this.getMonth())}-${pad(this.getDate())} ${pad(this.getHours())}:${pad(this.getMinutes())}:${pad(this.getSeconds())}`;
+        return `${this.getFullYear()}-${pad(this.getMonth() + 1)}-${pad(this.getDate())} ${pad(this.getHours())}:${pad(this.getMinutes())}:${pad(this.getSeconds())}`;
     }
 </script>