diff --git a/aio/content/errors/NG0505.md b/aio/content/errors/NG0505.md
index 14a550e4dfc..5905866216c 100644
--- a/aio/content/errors/NG0505.md
+++ b/aio/content/errors/NG0505.md
@@ -8,7 +8,7 @@ doesn't contain special serialized information about the application that hydrat
 logic relies on.
 
 This can happen when the `provideClientHydration()` function is included in the client
-part of the application configuration, but it missing in the server part of the configuration.
+part of the application configuration, but is missing in the server part of the configuration.
 
 In applications with the default project structure (generated by the `ng new`),
 the `provideClientHydration()` call is added either into the `providers` array of