diff --git a/2-ui/99-ui-misc/01-mutation-observer/article.md b/2-ui/99-ui-misc/01-mutation-observer/article.md
index d2a8eac0..4ec1cd4a 100644
--- a/2-ui/99-ui-misc/01-mutation-observer/article.md
+++ b/2-ui/99-ui-misc/01-mutation-observer/article.md
@@ -236,7 +236,7 @@ There's a method to stop observing the node:
 
 - `observer.disconnect()` -- stops the observation.
 
-When we stop the observing, it might be possible that some changes were not yet processed by the observer.
+When we stop the observing, it might be possible that some changes were not yet processed by the observer. In such cases, we use
 
 - `observer.takeRecords()` -- gets a list of unprocessed mutation records, those that happened, but the callback has not handled them.