diff --git a/internal/api/ui/login/static/i18n/en.yaml b/internal/api/ui/login/static/i18n/en.yaml
index 181047a5f..d31c607fa 100644
--- a/internal/api/ui/login/static/i18n/en.yaml
+++ b/internal/api/ui/login/static/i18n/en.yaml
@@ -7,7 +7,7 @@ Login:
   UsernamePlaceHolder: username
   LoginnamePlaceHolder: username@domain
   ExternalUserDescription: Login with an external user.
-  MustBeMemberOfOrg: The user must be member of the {{.OrgName}} organization.
+  MustBeMemberOfOrg: The user must be a member of the {{.OrgName}} organization.
   RegisterButtonText: Register
   NextButtonText: Next
 
@@ -26,7 +26,7 @@ SelectAccount:
   OtherUser: Other User
   SessionState0: active
   SessionState1: Signed out
-  MustBeMemberOfOrg: The user must be member of the {{.OrgName}} organization.
+  MustBeMemberOfOrg: The user must be a member of the {{.OrgName}} organization.
 
 Password:
   Title: Password