diff --git a/dev/Settings/Admin/About.js b/dev/Settings/Admin/About.js
index ef381683e..456fa250d 100644
--- a/dev/Settings/Admin/About.js
+++ b/dev/Settings/Admin/About.js
@@ -16,6 +16,7 @@ export class AdminSettingsAbout /*extends AbstractViewSettings*/ {
 			coreWarning: false,
 			coreVersion: '',
 			coreVersionCompare: -2,
+			php64: true,
 			load1: 0,
 			load5: 0,
 			load15: 0,
@@ -69,6 +70,7 @@ export class AdminSettingsAbout /*extends AbstractViewSettings*/ {
 				this.coreWarning(!!data.core.warning);
 				this.coreVersion(data.core.version || '');
 				this.coreVersionCompare(data.core.versionCompare);
+				this.php64(data.php[1].loaded);
 			} else {
 				this.coreReal(false);
 				this.coreWarning(false);
diff --git a/snappymail/v/0.0.0/app/templates/Views/Admin/AdminSettingsAbout.html b/snappymail/v/0.0.0/app/templates/Views/Admin/AdminSettingsAbout.html
index 8b5a03115..b83ea9345 100644
--- a/snappymail/v/0.0.0/app/templates/Views/Admin/AdminSettingsAbout.html
+++ b/snappymail/v/0.0.0/app/templates/Views/Admin/AdminSettingsAbout.html
@@ -75,7 +75,12 @@
 			</tbody>
 			</table>
 
-			<h3>PHP optional extensions</h3>
+			<h3>PHP</h3>
+			<div data-bind="hidden: php64" class="alert">
+				<i class="fontastic" style="color:red">⚠</i>
+				PHP is running in 32bit mode. <a href="https://github.com/the-djmaze/snappymail/issues/830#issuecomment-1372112793">read here</a>
+			</div>
+
 			<table class="table table-hover table-bordered"><thead><tr>
 				<th>Extension</th>
 				<th>Loaded</th>