diff --git a/src/extend.js b/src/extend.js
index b86bdfbe2..b71cb63c5 100644
--- a/src/extend.js
+++ b/src/extend.js
@@ -1,47 +1,30 @@
 /* @flow */
 
 export default function extend (Vue: any): void {
-  // $FlowFixMe
-  Object.defineProperty(Vue.prototype, '$t', {
-    get () {
-      return (key: Path, ...values: any): TranslateResult => {
-        const i18n = this.$i18n
-        return i18n._t(key, i18n.locale, i18n._getMessages(), this, ...values)
-      }
-    }
-  })
-  // $FlowFixMe
-  Object.defineProperty(Vue.prototype, '$tc', {
-    get () {
-      return (key: Path, choice?: number, ...values: any): TranslateResult => {
-        const i18n = this.$i18n
-        return i18n._tc(key, i18n.locale, i18n._getMessages(), this, choice, ...values)
-      }
-    }
-  })
-  // $FlowFixMe
-  Object.defineProperty(Vue.prototype, '$te', {
-    get () {
-      return (key: Path, locale?: Locale): boolean => {
-        const i18n = this.$i18n
-        return i18n._te(key, i18n.locale, i18n._getMessages(), locale)
-      }
-    }
-  })
-  // $FlowFixMe
-  Object.defineProperty(Vue.prototype, '$d', {
-    get () {
-      return (value: number | Date, ...args: any): DateTimeFormatResult => {
-        return this.$i18n.d(value, ...args)
-      }
-    }
-  })
-  // $FlowFixMe
-  Object.defineProperty(Vue.prototype, '$n', {
-    get () {
-      return (value: number, ...args: any): NumberFormatResult => {
-        return this.$i18n.n(value, ...args)
-      }
-    }
+  Object.defineProperty(Vue.prototype, '$i18n', {
+    get () { return this._i18n }
   })
+
+  Vue.prototype.$t = function (key: Path, ...values: any): TranslateResult {
+    const i18n = this.$i18n
+    return i18n._t(key, i18n.locale, i18n._getMessages(), this, ...values)
+  }
+
+  Vue.prototype.$tc = function (key: Path, choice?: number, ...values: any): TranslateResult {
+    const i18n = this.$i18n
+    return i18n._tc(key, i18n.locale, i18n._getMessages(), this, choice, ...values)
+  }
+
+  Vue.prototype.$te = function (key: Path, locale?: Locale): boolean {
+    const i18n = this.$i18n
+    return i18n._te(key, i18n.locale, i18n._getMessages(), locale)
+  }
+
+  Vue.prototype.$d = function (value: number | Date, ...args: any): DateTimeFormatResult {
+    return this.$i18n.d(value, ...args)
+  }
+
+  Vue.prototype.$n = function (value: number, ...args: any): NumberFormatResult {
+    return this.$i18n.n(value, ...args)
+  }
 }
diff --git a/src/install.js b/src/install.js
index 750206eeb..8066afd57 100644
--- a/src/install.js
+++ b/src/install.js
@@ -23,10 +23,6 @@ export function install (_Vue) {
     return
   }
 
-  Object.defineProperty(Vue.prototype, '$i18n', {
-    get () { return this._i18n }
-  })
-
   extend(Vue)
   Vue.mixin(mixin)
   Vue.directive('t', { bind, update, unbind })
diff --git a/test/unit/issues.test.js b/test/unit/issues.test.js
index 782d391a1..bd1b76699 100644
--- a/test/unit/issues.test.js
+++ b/test/unit/issues.test.js
@@ -287,35 +287,6 @@ describe('issues', () => {
     })
   })
 
-  describe('#259', () => {
-    it('this points to the right', done => {
-      const vm = new Vue({
-        i18n: new VueI18n({
-          locale: 'en',
-          messages: {
-            en: {
-              'hello': 'hello #259'
-            },
-            ja: {
-              'hello': 'こんにちは #259'
-            }
-          }
-        })
-      })
-      const $t = vm.$t
-      const $tc = vm.$t
-      const $te = vm.$t
-      const $d = vm.$t
-      const $n = vm.$t
-      assert.equal($t('hello'), 'hello #259')
-      assert.equal($tc('hello'), 'hello #259')
-      assert.equal($te('hello'), 'hello #259')
-      assert.equal($d('hello'), 'hello #259')
-      assert.equal($n('hello'), 'hello #259')
-      done()
-    })
-  })
-
   describe('#377', () => {
     it('should be destroyed', done => {
       const el = document.createElement('div')