diff --git a/package-lock.json b/package-lock.json
index 3198e5e..13dc287 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue2-scrollspy",
-  "version": "2.0.1",
+  "version": "2.1.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/src/index.js b/src/index.js
index 3901111..45b34f4 100644
--- a/src/index.js
+++ b/src/index.js
@@ -85,9 +85,16 @@ export default function install (Vue, options) {
 
   function initScrollSections (el, selector) {
     const id = scrollSpyId(el)
-    const idScrollSections = findElements(el, selector)
+    const idScrollSections = findElements(el)
     scrollSpySections[id] = idScrollSections
 
+    if (selector) {
+      const dom = document.querySelector(selector)
+      el[scrollSpyContext].eventEl = dom
+      el[scrollSpyContext].scrollEl = dom
+      return
+    }
+
     if (idScrollSections[0] && idScrollSections[0].offsetParent !== el) {
       el[scrollSpyContext].eventEl = window
       el[scrollSpyContext].scrollEl = bodyScrollEl
@@ -193,16 +200,16 @@ export default function install (Vue, options) {
 
       scrollSpyElements[id] = el
     },
-    inserted: function (el) {
-      initScrollSections(el)
+    inserted: function (el, binding) {
+      initScrollSections(el, binding.value.container)
 
       const {eventEl, onScroll} = el[scrollSpyContext]
       eventEl.addEventListener('scroll', onScroll)
 
       onScroll()
     },
-    componentUpdated: function (el) {
-      initScrollSections(el)
+    componentUpdated: function (el, binding) {
+      initScrollSections(el, binding.value.container)
 
       const {onScroll} = el[scrollSpyContext]