diff --git a/aio/content/guide/glossary.md b/aio/content/guide/glossary.md
index 2aeef39eab..bef5582213 100644
--- a/aio/content/guide/glossary.md
+++ b/aio/content/guide/glossary.md
@@ -601,7 +601,7 @@ Compare to [NgModule](#ngmodule).
 ## ngcc
 
 Angular compatibility compiler.
-If you build your app using [Ivy](#ivy), but it depends on libraries have not been compiled with Ivy, the CLI uses `ngcc` to automatically update the dependent libraries to use Ivy.
+If you build your app using [Ivy](#ivy), but it depends on libraries that have not been compiled with Ivy, the CLI uses `ngcc` to automatically update the dependent libraries to use Ivy.
 
 
 {@a ngmodule}