diff --git a/src/components/PlaceholderWithoutTracking.jsx b/src/components/PlaceholderWithoutTracking.jsx
index 89ee10a..e7f1815 100644
--- a/src/components/PlaceholderWithoutTracking.jsx
+++ b/src/components/PlaceholderWithoutTracking.jsx
@@ -50,7 +50,7 @@ class PlaceholderWithoutTracking extends React.Component {
 		}
 	}
 
-	componentWillUnMount() {
+	componentWillUnmount() {
 		if (this.LAZY_LOAD_OBSERVER) {
 			this.LAZY_LOAD_OBSERVER.observer.unobserve(this.placeholder);
 		}