diff --git a/__test__/mocks/mathmlStrings.ts b/__test__/mocks/mathmlStrings.ts
index 9be0676..383008a 100755
--- a/__test__/mocks/mathmlStrings.ts
+++ b/__test__/mocks/mathmlStrings.ts
@@ -397,6 +397,228 @@ export const mfencedAsPartialFunction = `
`;
+export const mfencedWithNestedMtables = `
+
+`;
+
export const mfrac = `