diff --git a/src/Popup.js b/src/Popup.js
index 97ab8003..3fb7d925 100644
--- a/src/Popup.js
+++ b/src/Popup.js
@@ -83,7 +83,7 @@ class Popup extends Component {
     const height = $ele.offsetHeight;
     const width = $ele.offsetWidth;
 
-    if (targetHeight !== height || targetWidth !== width || !stretchChecked) {
+    if ((targetHeight !== height || targetWidth !== width) && !stretchChecked) {
       this.setState({
         stretchChecked: true,
         targetHeight: height,