diff --git a/changelog/22153.txt b/changelog/22153.txt
new file mode 100644
index 0000000000..4c51718dc7
--- /dev/null
+++ b/changelog/22153.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+ui: correct doctype for index.html
+```
diff --git a/ui/app/index.html b/ui/app/index.html
index c8204c06b7..a837b9332f 100644
--- a/ui/app/index.html
+++ b/ui/app/index.html
@@ -1,10 +1,10 @@
-
+
-
+