diff --git a/src/runtime/template_helpers.ts b/src/runtime/template_helpers.ts
index 82a68e1a..600b9ab3 100644
--- a/src/runtime/template_helpers.ts
+++ b/src/runtime/template_helpers.ts
@@ -29,6 +29,13 @@ function callSlot(
   const slots = ctx.props.slots || {};
   const { __render, __ctx, __scope } = slots[name] || {};
   const slotScope = ObjectCreate(__ctx || {});
+  if (defaultContent) {
+    Object.defineProperty(slotScope, helpers.zero, {
+      get() {
+        return defaultContent(ctx, parent, key);
+      },
+    });
+  }
   if (__scope) {
     slotScope[__scope] = extra;
   }
diff --git a/tests/components/__snapshots__/slots.test.ts.snap b/tests/components/__snapshots__/slots.test.ts.snap
index 4eab0079..0e93fa1e 100644
--- a/tests/components/__snapshots__/slots.test.ts.snap
+++ b/tests/components/__snapshots__/slots.test.ts.snap
@@ -349,6 +349,42 @@ exports[`slots content is the default slot 2`] = `
 }"
 `;
 
+exports[`slots default content is available as 0 1`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  let { zero, markRaw } = helpers;
+  const comp1 = app.createComponent(\`Dialog\`, true, true, false, true);
+  
+  function slot1(ctx, node, key = \\"\\") {
+    const b2 = text(\`Before - \`);
+    const b3 = ctx[zero];
+    const b4 = text(\` - After\`);
+    return multi([b2, b3, b4]);
+  }
+  
+  return function template(ctx, node, key = \\"\\") {
+    return comp1({slots: markRaw({'default': {__render: slot1.bind(this), __ctx: ctx}})}, key + \`__1\`, node, this, null);
+  }
+}"
+`;
+
+exports[`slots default content is available as 0 2`] = `
+"function anonymous(app, bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, comment } = bdom;
+  let { callSlot } = helpers;
+  
+  function defaultContent1(ctx, node, key = \\"\\") {
+    return text(\`default content\`);
+  }
+  
+  return function template(ctx, node, key = \\"\\") {
+    return callSlot(ctx, node, key, 'default', false, {}, defaultContent1.bind(this));
+  }
+}"
+`;
+
 exports[`slots default content is not rendered if named slot is provided 1`] = `
 "function anonymous(app, bdom, helpers
 ) {
diff --git a/tests/components/slots.test.ts b/tests/components/slots.test.ts
index f36ef6d0..0c3f549a 100644
--- a/tests/components/slots.test.ts
+++ b/tests/components/slots.test.ts
@@ -1933,4 +1933,17 @@ describe("slots", () => {
       "<p>1 hello <div>child</div></p><p>2 hello <div>child</div></p>"
     );
   });
+
+  test("default content is available as 0", async () => {
+    class Dialog extends Component {
+      static template = xml`<t t-slot="default">default content</t>`;
+    }
+    class Parent extends Component {
+      static template = xml`<Dialog>Before - <t t-out="0"/> - After</Dialog>`;
+      static components = { Dialog };
+    }
+
+    await mount(Parent, fixture);
+    expect(fixture.innerHTML).toBe("Before - default content - After");
+  });
 });