1 files changed, 12 insertions, 0 deletions
diff --git a/layout/reftests/mathml/munderover-accentunder-dynamic-ref.html b/layout/reftests/mathml/munderover-accentunder-dynamic-ref.html
new file mode 100644
index 000000000..669f6240f
--- /dev/null
+++ b/layout/reftests/mathml/munderover-accentunder-dynamic-ref.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+ <html>
+   <head>
+     <title>munderover@accentunder</title>
+     <meta charset="utf-8"/>
+   </head>
+   <body>
+    <math>
+      <munderover accentunder="true"><mtext>X</mtext><mo>O</mo><mo>O</mo></munderover>
+    </math>
+   </body>
+</html>
+\ No newline at end of file