diff --git a/test/integration/accessibility_spec.mjs b/test/integration/accessibility_spec.mjs
index 52815f181..71d7a7bce 100644
--- a/test/integration/accessibility_spec.mjs
+++ b/test/integration/accessibility_spec.mjs
@@ -420,8 +420,12 @@ describe("accessibility", () => {
           expect(mathML)
             .withContext(`In ${browserName}`)
             .toEqual(
-              `<mi aria-owns="p76R_mc16"></mi><mo aria-owns="p76R_mc17"></mo><msqrt><mrow><msup><mi aria-owns="p76R_mc18"></mi><mn aria-owns="p76R_mc19"></mn></msup><mo aria-owns="p76R_mc20"></mo><msup><mi aria-owns="p76R_mc21"></mi><mn aria-owns="p76R_mc22"></mn></msup></mrow></msqrt>`
+              `<mi aria-owns="p76R_mc16">𝑐</mi><mo aria-owns="p76R_mc17">=</mo><msqrt><mrow><msup><mi aria-owns="p76R_mc18">𝑎</mi><mn aria-owns="p76R_mc19">2</mn></msup><mo aria-owns="p76R_mc20">+</mo><msup><mi aria-owns="p76R_mc21">𝑏</mi><mn aria-owns="p76R_mc22">2</mn></msup></mrow></msqrt>`
             );
+          const ariaHidden = await page.$eval("span#p76R_mc16", el =>
+            el.getAttribute("aria-hidden")
+          );
+          expect(ariaHidden).withContext(`In ${browserName}`).toEqual("true");
         })
       );
     });
diff --git a/web/struct_tree_layer_builder.js b/web/struct_tree_layer_builder.js
index 94d7617c3..f52b6acc0 100644
--- a/web/struct_tree_layer_builder.js
+++ b/web/struct_tree_layer_builder.js
@@ -323,9 +323,26 @@ class StructTreeLayerBuilder {
     let element;
     if ("role" in node) {
       const { role } = node;
-      element = MathMLElements.has(role)
-        ? document.createElementNS(MathMLNamespace, role)
-        : document.createElement("span");
+      if (MathMLElements.has(role)) {
+        element = document.createElementNS(MathMLNamespace, role);
+        let text = "";
+        for (const { type, id } of node.children || []) {
+          if (type !== "content" || !id) {
+            continue;
+          }
+          const elem = document.getElementById(id);
+          if (!elem) {
+            continue;
+          }
+          text += elem.textContent.trim() || "";
+          // Aria-hide the element in order to avoid duplicate reading of the
+          // math content by screen readers.
+          elem.ariaHidden = "true";
+        }
+        element.textContent = text;
+      } else {
+        element = document.createElement("span");
+      }
       const match = role.match(HEADING_PATTERN);
       if (match) {
         element.setAttribute("role", "heading");