diff --git a/layout/reftests/mathml/reftest.list b/layout/reftests/mathml/reftest.list
index dd1b0690b22..18c8a1333b5 100644
--- a/layout/reftests/mathml/reftest.list
+++ b/layout/reftests/mathml/reftest.list
@@ -1,2 +1,3 @@
== mi-mathvariant-1.xhtml mi-mathvariant-1-ref.xhtml
== mi-mathvariant-2.xhtml mi-mathvariant-2-ref.xhtml
+== table-width-1.xhtml table-width-1-ref.xhtml
diff --git a/layout/reftests/mathml/table-width-1-ref.xhtml b/layout/reftests/mathml/table-width-1-ref.xhtml
new file mode 100644
index 00000000000..315ca358bf2
--- /dev/null
+++ b/layout/reftests/mathml/table-width-1-ref.xhtml
@@ -0,0 +1,72 @@
+
+
+
+
+
+
+
+
+ |
+
+
+
+
+
+ |
+
+
+
+
+ |
+
+
+
diff --git a/layout/reftests/mathml/table-width-1.xhtml b/layout/reftests/mathml/table-width-1.xhtml
new file mode 100644
index 00000000000..9779270349a
--- /dev/null
+++ b/layout/reftests/mathml/table-width-1.xhtml
@@ -0,0 +1,67 @@
+
+
+ Check that the content box is large enough
+
+
+
+
+
+
+ |
+
+
+
+
+
+ |
+
+
+
+
+ |
+
+
+