diff --git a/packages/omi/src/component.ts b/packages/omi/src/component.ts
index c5651e121..761b270f6 100644
--- a/packages/omi/src/component.ts
+++ b/packages/omi/src/component.ts
@@ -160,12 +160,12 @@ export class Component<State = any> extends HTMLElement {
   }
 
   attributeChangedCallback(name, oldValue, newValue) {
-    const propsName = camelCase(name)
-    if (this.constructor.props && this.constructor.props[propsName]) {
-      const prop = this.constructor.props[propsName]
+    const propName = camelCase(name)
+    if (this.constructor.props && this.constructor.props[propName]) {
+      const prop = this.constructor.props[propName]
       if (prop.changed) {
-        const newTypeValue = this.getTypeValueofProp(propsName, newValue)
-        const oldTypeValue = this.getTypeValueofProp(propsName, oldValue)
+        const newTypeValue = this.getTypeValueOfProp(propName, newValue)
+        const oldTypeValue = this.getTypeValueOfProp(propName, oldValue)
         prop.changed.call(this, newTypeValue, oldTypeValue)
       }
     }
diff --git a/packages/omi/test/attrs-to-props.test.jsx b/packages/omi/test/attrs-to-props.test.jsx
index b7b299621..8b630bef2 100644
--- a/packages/omi/test/attrs-to-props.test.jsx
+++ b/packages/omi/test/attrs-to-props.test.jsx
@@ -375,4 +375,33 @@ describe('attrs to props', () => {
     expect(parentElement.firstChild.shadowRoot.innerHTML).toBe('<div>18</div>')
   })
 
+  it('updateProps2', async () => {
+    var valA, valB
+    class Ele extends Component {
+      static props = {
+        myAge: {
+          type: Number,
+          changed(newVal, oldVal) {
+            valA = newVal
+            valB = oldVal
+          }
+        },
+      }
+
+      render(props) {
+        return <div>{props.myAge}</div>
+      }
+    }
+
+    const node = genNode()
+    define(node.name, Ele)
+    const el = document.createElement(node.name)
+    parentElement.appendChild(el)
+    el.setProp('my-age', 18)
+    el.setProp('my-age', 19)
+
+    expect(valA).toBe(19)
+    expect(valB).toBe(18)
+  })
+
 })