diff --git a/web/static/src/ts/core/qweb_vdom.ts b/web/static/src/ts/core/qweb_vdom.ts
index c46e347d..97b54873 100644
--- a/web/static/src/ts/core/qweb_vdom.ts
+++ b/web/static/src/ts/core/qweb_vdom.ts
@@ -725,12 +725,18 @@ const onDirective: Directive = {
       extraArgs = args.slice(1, -1);
       return "";
     });
-    ctx.addLine(
-      `extra.handlers[${nodeID}] = extra.handlers[${nodeID}] || context['${handler}'].bind(owner${
-        extraArgs ? ", " + qweb._formatExpression(extraArgs) : ""
-      });`
-    );
-    ctx.addLine(`p${nodeID}.on = {${eventName}: extra.handlers[${nodeID}]};`);
+    if (extraArgs) {
+      ctx.addLine(
+        `p${nodeID}.on = {${eventName}: context['${handler}'].bind(owner, ${qweb._formatExpression(
+          extraArgs
+        )})};`
+      );
+    } else {
+      ctx.addLine(
+        `extra.handlers[${nodeID}] = extra.handlers[${nodeID}] || context['${handler}'].bind(owner);`
+      );
+      ctx.addLine(`p${nodeID}.on = {${eventName}: extra.handlers[${nodeID}]};`);
+    }
   }
 };
 
diff --git a/web/static/tests/core/__snapshots__/qweb_vdom.test.ts.snap b/web/static/tests/core/__snapshots__/qweb_vdom.test.ts.snap
index 0d307c56..ecae79c3 100644
--- a/web/static/tests/core/__snapshots__/qweb_vdom.test.ts.snap
+++ b/web/static/tests/core/__snapshots__/qweb_vdom.test.ts.snap
@@ -904,8 +904,7 @@ exports[`t-on can bind handlers with arguments 1`] = `
     let h = this.h;
     let c1 = [], p1 = {};
     let vn1 = h('button', p1, c1);
-    extra.handlers[1] = extra.handlers[1] || context['add'].bind(owner, 5);
-    p1.on = {click: extra.handlers[1]};
+    p1.on = {click: context['add'].bind(owner, 5)};
     c1.push({text: \`Click\`});
     return vn1;
 }"
@@ -939,8 +938,7 @@ exports[`t-on can bind handlers with loop variable as argument 1`] = `
         let c6 = [], p6 = {};
         let vn6 = h('a', p6, c6);
         c5.push(vn6);
-        extra.handlers[6] = extra.handlers[6] || context['activate'].bind(owner, context['action']);
-        p6.on = {click: extra.handlers[6]};
+        p6.on = {click: context['activate'].bind(owner, context['action'])};
         c6.push({text: \`link\`});
     }
     c1.push({text: \`