diff --git a/utils/prometheus-node-exporter-lua/Makefile b/utils/prometheus-node-exporter-lua/Makefile
index 74d4d09cd9..5195437583 100644
--- a/utils/prometheus-node-exporter-lua/Makefile
+++ b/utils/prometheus-node-exporter-lua/Makefile
@@ -4,7 +4,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=prometheus-node-exporter-lua
-PKG_VERSION:=2024.06.15
+PKG_VERSION:=2024.06.16
 PKG_RELEASE:=1
 
 PKG_MAINTAINER:=Etienne CHAMPETIER <champetier.etienne@gmail.com>
diff --git a/utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/textfile.lua b/utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/textfile.lua
index 118177f490..4df7e91a25 100644
--- a/utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/textfile.lua
+++ b/utils/prometheus-node-exporter-lua/files/usr/lib/lua/prometheus-collectors/textfile.lua
@@ -3,8 +3,14 @@
 local fs = require "nixio.fs"
 
 local function scrape()
+  local mtime_metric = metric("node_textfile_mtime_seconds", "gauge")
+
   for metrics in fs.glob("/var/prometheus/*.prom") do
     output(get_contents(metrics), '\n')
+    local stat = fs.stat(metrics)
+    if stat then
+      mtime_metric({ file = metrics }, stat.mtime)
+    end
   end
 end