diff --git a/doc/reference/component.md b/doc/reference/component.md
index 63e1b32d..b4055f23 100644
--- a/doc/reference/component.md
+++ b/doc/reference/component.md
@@ -946,7 +946,7 @@ For example, here is how we could implement an `ErrorBoundary` component:
     <t t-if="state.error">
         Error handled
     </t>
-    <t t-else="1">
+    <t t-else="">
         <t t-slot="default" />
     </t>
 </div>
diff --git a/doc/reference/context.md b/doc/reference/context.md
index 927db380..1b6b5dc5 100644
--- a/doc/reference/context.md
+++ b/doc/reference/context.md
@@ -57,7 +57,7 @@ class SomeComponent extends Component {
       <t t-if=device.isMobile>
           some simplified user interface
       </t>
-      <t t-else="1">
+      <t t-else="">
           a more advanced user interface
       </t>
     </div>`;
diff --git a/doc/reference/qweb_templating_language.md b/doc/reference/qweb_templating_language.md
index e2123741..63b7f8f7 100644
--- a/doc/reference/qweb_templating_language.md
+++ b/doc/reference/qweb_templating_language.md
@@ -28,7 +28,7 @@ generate a virtual dom representation of the HTML.
 ```xml
 <div>
     <span t-if="somecondition">Some string</span>
-    <ul t-else="1">
+    <ul t-else="">
         <li t-foreach="messages" t-as="message">
             <t t-esc="message"/>
         </li>
@@ -101,7 +101,7 @@ precisely, the result of a template rendering should have a single root node:
 <!–– ok: result has one single root node ––>
 <t>
     <div t-if="someCondition">foo</div>
-    <span t-else="1">bar</span>
+    <span t-else="">bar</span>
 </t>
 ```
 
diff --git a/tests/component/component.test.ts b/tests/component/component.test.ts
index dbcd6c1a..66c8423f 100644
--- a/tests/component/component.test.ts
+++ b/tests/component/component.test.ts
@@ -618,7 +618,7 @@ describe("lifecycle hooks", () => {
             <t t-if="state.ok">
               <t t-component="child"/>
             </t>
-            <t t-else="1">
+            <t t-else="">
               <div/>
             </t>
           </div>`
@@ -1399,7 +1399,7 @@ describe("composition", () => {
       static template = xml`
         <div>
           <h1 t-if="state.flag">hey</h1>
-          <h2 t-else="1">noo</h2>
+          <h2 t-else="">noo</h2>
           <span><ChildWidget/></span>
           <t t-if="state.flag"><span>test</span></t>
         </div>`;
@@ -2425,7 +2425,7 @@ describe("other directives with t-component", () => {
       `
         <div>
           <div t-if="state.flag">somediv</div>
-          <t t-else="1" t-component="child"/>
+          <t t-else="" t-component="child"/>
         </div>`
     );
     class Child extends Widget {}
@@ -4414,7 +4414,7 @@ describe("t-slot directive", () => {
     env.qweb.addTemplates(`
         <templates>
           <div t-name="Parent">
-            <Dialog><t t-set="content" t-debug="1">abc</t></Dialog>
+            <Dialog><t t-set="content" t-debug="">abc</t></Dialog>
           </div>
           <span t-name="Dialog">
             <t t-slot="content"/>
@@ -4892,7 +4892,7 @@ describe("t-model directive", () => {
             <input type="checkbox" t-model="state.flag"/>
             <span>
                 <t t-if="state.flag">yes</t>
-                <t t-else="1">no</t>
+                <t t-else="">no</t>
             </span>
         </div>
     </templates>`);
@@ -5171,7 +5171,7 @@ describe("environment and plugins", () => {
       static template = xml`
         <div>
             <t t-if="env.someFlag">Red</t>
-            <t t-else="1">Blue</t>
+            <t t-else="">Blue</t>
         </div>
       `;
     }
@@ -5234,7 +5234,7 @@ describe("component error handling (catchError)", () => {
       static template = xml`
         <div>
           <t t-if="state.error">Error handled</t>
-          <t t-else="1"><t t-slot="default" /></t>
+          <t t-else=""><t t-slot="default" /></t>
         </div>`;
       state = useState({ error: false });
 
@@ -5310,7 +5310,7 @@ describe("component error handling (catchError)", () => {
       static template = xml`
         <div>
           <t t-if="state.error">Error handled</t>
-          <t t-else="1"><t t-slot="default" /></t>
+          <t t-else=""><t t-slot="default" /></t>
         </div>`;
       state = useState({ error: false });
 
@@ -5346,7 +5346,7 @@ describe("component error handling (catchError)", () => {
       static template = xml`
         <div>
           <t t-if="state.error">Error handled</t>
-          <t t-else="1"><t t-slot="default" /></t>
+          <t t-else=""><t t-slot="default" /></t>
         </div>`;
       state = useState({ error: false });
 
@@ -5382,7 +5382,7 @@ describe("component error handling (catchError)", () => {
       <templates>
         <div t-name="ErrorBoundary">
             <t t-if="state.error">Error handled</t>
-            <t t-else="1"><t t-slot="default" /></t>
+            <t t-else=""><t t-slot="default" /></t>
         </div>
         <div t-name="ErrorComponent">Some text</div>
         <div t-name="App">
@@ -5429,7 +5429,7 @@ describe("component error handling (catchError)", () => {
       static template = xml`
         <div>
           <t t-if="state.error">Error handled</t>
-          <t t-else="1"><t t-slot="default" /></t>
+          <t t-else=""><t t-slot="default" /></t>
         </div>`;
       state = useState({ error: false });
 
@@ -5456,7 +5456,7 @@ describe("component error handling (catchError)", () => {
       <templates>
         <div t-name="ErrorBoundary">
             <t t-if="state.error">Error handled</t>
-            <t t-else="1"><t t-slot="default" /></t>
+            <t t-else=""><t t-slot="default" /></t>
         </div>
         <div t-name="ErrorComponent">Some text</div>
         <div t-name="App">
@@ -5500,7 +5500,7 @@ describe("component error handling (catchError)", () => {
       static template = xml`
         <div>
           <t t-if="state.error">Error handled</t>
-          <t t-else="1"><t t-slot="default" /></t>
+          <t t-else=""><t t-slot="default" /></t>
         </div>`;
       state = useState({ error: false });
 
diff --git a/tests/qweb/qweb.test.ts b/tests/qweb/qweb.test.ts
index e950c403..6475bbbf 100644
--- a/tests/qweb/qweb.test.ts
+++ b/tests/qweb/qweb.test.ts
@@ -426,7 +426,7 @@ describe("t-if", () => {
   });
 
   test("t-esc with t-elif", () => {
-    qweb.addTemplate("test", `<div><t t-if="false">abc</t><t t-else="1" t-esc="'x'"/></div>`);
+    qweb.addTemplate("test", `<div><t t-if="false">abc</t><t t-else="" t-esc="'x'"/></div>`);
     expect(renderToString(qweb, "test")).toBe("<div>x</div>");
   });
 
@@ -1644,7 +1644,7 @@ describe("debugging", () => {
     console.log = jest.fn();
     qweb.addTemplate(
       "test",
-      `<div t-debug="1"><t t-if="true"><span t-debug="1">hey</span></t></div>`
+      `<div t-debug=""><t t-if="true"><span t-debug="">hey</span></t></div>`
     );
     qweb.render("test");
     expect(qweb.templates.test.fn.toString()).toMatchSnapshot();
@@ -1658,7 +1658,7 @@ describe("debugging", () => {
     console.log = jest.fn();
     qweb.addTemplates(`
       <templates>
-      <p t-name="sub" t-debug="1">coucou</p>
+      <p t-name="sub" t-debug="">coucou</p>
       <div t-name="test">
         <t t-call="sub"/>
       </div>
diff --git a/tools/playground/samples.js b/tools/playground/samples.js
index d02526d6..d01834ad 100644
--- a/tools/playground/samples.js
+++ b/tools/playground/samples.js
@@ -1101,7 +1101,7 @@ const RESPONSIVE_XML = `<templates>
         <t t-raw="maincontent"/>
       </div>
     </div>
-    <t t-else="1">
+    <t t-else="">
       <t t-raw="maincontent"/>
     </t>
   </div>
@@ -1438,7 +1438,7 @@ const FORM_XML = `<templates>
     <div>Text: <t t-esc="state.text"/></div>
     <div>Other Text: <t t-esc="state.othertext"/></div>
     <div>Number: <t t-esc="state.number"/></div>
-    <div>Boolean: <t t-if="state.bool">True</t><t t-else="1">False</t></div>
+    <div>Boolean: <t t-if="state.bool">True</t><t t-else="">False</t></div>
     <div>Color: <t t-esc="state.color"/></div>
   </div>
 </templates>