diff --git a/index.src.html b/index.src.html
index 1b7b4e7..b029e21 100644
--- a/index.src.html
+++ b/index.src.html
@@ -673,7 +673,7 @@
Reporting Observers
an observer could first be created, or before a JavaScript library is loaded
that wishes to observe these reports.
- Note: Reporting observers are only relevant for user agents with
+ Note: Reporting observers are only relevant for user agents with
JavaScript engines.
Interface {{ReportingObserver}}