diff --git a/packages/vuetify/src/mixins/routable/index.ts b/packages/vuetify/src/mixins/routable/index.ts
index 624068b97c1..66b88347e58 100644
--- a/packages/vuetify/src/mixins/routable/index.ts
+++ b/packages/vuetify/src/mixins/routable/index.ts
@@ -140,8 +140,8 @@ export default Vue.extend({
     },
     onRouteChange () {
       if (!this.to || !this.$refs.link || !this.$route) return
-      const activeClass = `${this.activeClass} ${this.proxyClass || ''}`.trim()
-      const exactActiveClass = `${this.exactActiveClass} ${this.proxyClass || ''}`.trim() || activeClass
+      const activeClass = `${this.activeClass || ''} ${this.proxyClass || ''}`.trim()
+      const exactActiveClass = `${this.exactActiveClass || ''} ${this.proxyClass || ''}`.trim() || activeClass
 
       const path = '_vnode.data.class.' + (this.exact ? exactActiveClass : activeClass)