diff --git a/webpack/webpack.prod.js b/webpack/webpack.prod.js
index 1af08c2af..89b7f18c8 100644
--- a/webpack/webpack.prod.js
+++ b/webpack/webpack.prod.js
@@ -12,6 +12,15 @@ const common = require("./webpack.common.js");
 const attachments = require("./attachments");
 const components = require("./components");
 
+const childProcess = require('child_process');
+
+function git(command) {
+    return childProcess
+        .execSync(`git ${command}`)
+        .toString()
+        .trim();
+}
+
 module.exports = merge.smart(common, {
     mode: "production",
     entry: {
@@ -63,7 +72,11 @@ module.exports = merge.smart(common, {
                 }
             }),
             new webpack.BannerPlugin({
-                banner: `time: ${new Date().toLocaleString()}`
+                banner: `time: ${new Date().toLocaleString()}; branch: ${git(
+                    'rev-parse --abbrev-ref HEAD'
+                )} commit: ${git(
+                    'rev-parse HEAD'
+                )}`
             })
         ]
     },