diff --git a/web/src/components.ts b/web/src/components.ts
index f17b4d2295..fbaabe2abb 100644
--- a/web/src/components.ts
+++ b/web/src/components.ts
@@ -116,7 +116,7 @@ export function toggle(opts: {
     }
 
     meta.$ind_tab.on("click", function () {
-        const idx = $(this).data("tab-id");
+        const idx = Number($(this).attr("data-tab-id"));
         select_tab(idx);
     });
 
diff --git a/web/tests/components.test.js b/web/tests/components.test.js
index 650f219d41..47854ed79a 100644
--- a/web/tests/components.test.js
+++ b/web/tests/components.test.js
@@ -33,8 +33,8 @@ function make_tab(i) {
         return tokens.includes(c);
     };
 
-    $self.data = (name) => {
-        assert.equal(name, "tab-id");
+    $self.attr = (name) => {
+        assert.equal(name, "data-tab-id");
         return i;
     };