diff --git a/lib/components/term.js b/lib/components/term.js
index b5d267a5..85d717f8 100644
--- a/lib/components/term.js
+++ b/lib/components/term.js
@@ -426,18 +426,16 @@ export default class Term extends React.PureComponent {
   onTermWrapperRef(component) {
     this.termWrapperRef = component;
 
-    let resizeTimeout;
-    let resizeObserver;
     if (component) {
-      resizeObserver = new ResizeObserver(() => {
-        clearTimeout(resizeTimeout);
-        resizeTimeout = setTimeout(() => {
+      this.resizeObserver = new ResizeObserver(() => {
+        clearTimeout(this.resizeTimeout);
+        this.resizeTimeout = setTimeout(() => {
           this.fitResize();
         }, 500);
       });
-      resizeObserver.observe(component);
+      this.resizeObserver.observe(component);
     } else {
-      resizeObserver.disconnect();
+      this.resizeObserver.disconnect();
     }
   }