diff --git a/src/history/hash.js b/src/history/hash.js
index e0ddf2d7c..81ee1fc3c 100644
--- a/src/history/hash.js
+++ b/src/history/hash.js
@@ -3,6 +3,7 @@
 import type Router from '../index'
 import { History } from './base'
 import { cleanPath } from '../util/path'
+import { isSameRoute, createPlainRoute } from '../util/route'
 import { getLocation } from './html5'
 import { setupScroll, handleScroll } from '../util/scroll'
 import { pushState, replaceState, supportsPushState } from '../util/push-state'
@@ -87,8 +88,10 @@ export class HashHistory extends History {
   }
 
   ensureURL (push?: boolean) {
-    const current = this.current.fullPath
-    if (getHash() !== current) {
+    const location = getHash()
+    const plainRoute = createPlainRoute(location)
+    if (!isSameRoute(plainRoute, this.current)) {
+      const current = this.current.fullPath
       push ? pushHash(current) : replaceHash(current)
     }
   }
diff --git a/src/history/html5.js b/src/history/html5.js
index 9af347fe8..5ae0b1b81 100644
--- a/src/history/html5.js
+++ b/src/history/html5.js
@@ -3,7 +3,7 @@
 import type Router from '../index'
 import { History } from './base'
 import { cleanPath } from '../util/path'
-import { START } from '../util/route'
+import { START, isSameRoute, createPlainRoute } from '../util/route'
 import { setupScroll, handleScroll } from '../util/scroll'
 import { pushState, replaceState, supportsPushState } from '../util/push-state'
 
@@ -74,7 +74,9 @@ export class HTML5History extends History {
   }
 
   ensureURL (push?: boolean) {
-    if (getLocation(this.base) !== this.current.fullPath) {
+    const location = getLocation(this.base)
+    const plainRoute = createPlainRoute(location)
+    if (!isSameRoute(plainRoute, this.current)) {
       const current = cleanPath(this.base + this.current.fullPath)
       push ? pushState(current) : replaceState(current)
     }
diff --git a/src/util/route.js b/src/util/route.js
index 37a499272..75df6236a 100644
--- a/src/util/route.js
+++ b/src/util/route.js
@@ -2,6 +2,7 @@
 
 import type VueRouter from '../index'
 import { stringifyQuery } from './query'
+import { normalizeLocation } from './location'
 
 const trailingSlashRE = /\/?$/
 
@@ -149,3 +150,8 @@ export function handleRouteEntered (route: Route) {
     }
   }
 }
+/** just create a route without any added process */
+export function createPlainRoute (url: string) {
+  const location = normalizeLocation(url)
+  return createRoute(null, location)
+}
diff --git a/test/unit/specs/route.spec.js b/test/unit/specs/route.spec.js
index c9483ab7d..14d84d59f 100644
--- a/test/unit/specs/route.spec.js
+++ b/test/unit/specs/route.spec.js
@@ -1,4 +1,4 @@
-import { isSameRoute, isIncludedRoute } from '../../../src/util/route'
+import { isSameRoute, isIncludedRoute, createPlainRoute } from '../../../src/util/route'
 
 describe('Route utils', () => {
   describe('isSameRoute', () => {
@@ -150,4 +150,21 @@ describe('Route utils', () => {
       expect(isIncludedRoute(d, f)).toBe(false)
     })
   })
+
+  describe('createPlainRoute', () => {
+    it('path', () => {
+      const a = { path: '/a?arr=1&foo=bar&arr=2#hi' }
+      const b = { path: '/a?arr=1&arr=2&foo=bar#hi' }
+      const route = {
+        path: '/a',
+        hash: '#hi',
+        query: { foo: 'bar', arr: [1, 2] }
+      }
+      const aRoute = createPlainRoute(a)
+      const bRoute = createPlainRoute(b)
+      expect(isSameRoute(aRoute, route)).toBe(true)
+      expect(isSameRoute(aRoute, route)).toBe(true)
+      expect(isSameRoute(aRoute, bRoute)).toBe(true)
+    })
+  })
 })