diff --git a/src/TimeGrid.js b/src/TimeGrid.js
index d0379cfef..4b96af890 100644
--- a/src/TimeGrid.js
+++ b/src/TimeGrid.js
@@ -24,6 +24,7 @@ export default class TimeGrid extends Component {
 
     this.scrollRef = React.createRef()
     this.contentRef = React.createRef()
+    this._scrollRatio = null
   }
 
   componentWillMount() {
@@ -267,7 +268,7 @@ export default class TimeGrid extends Component {
   }
 
   applyScroll() {
-    if (this._scrollRatio) {
+    if (this._scrollRatio != null) {
       const content = this.contentRef.current
       content.scrollTop = content.scrollHeight * this._scrollRatio
       // Only do this once