diff --git a/draft-ietf-privacypass-auth-scheme.md b/draft-ietf-privacypass-auth-scheme.md
index edee56a7..b9646576 100644
--- a/draft-ietf-privacypass-auth-scheme.md
+++ b/draft-ietf-privacypass-auth-scheme.md
@@ -574,7 +574,7 @@ with token requests that might cause clients to hit rate limits.
 
 ## Greasing
 
-In order to prevent clients becoming incompatible with new token challenges,
+In order to prevent clients from becoming incompatible with new token challenges,
 origins SHOULD include random token types, from the Reserved list of "greased"
 types (defined in {{token-types}}), with some non-trivial probability.