diff --git a/x-pack/docs/en/security/authentication/active-directory-realm.asciidoc b/x-pack/docs/en/security/authentication/active-directory-realm.asciidoc
index cd91de41011f0..d2b55a6c9dfbf 100644
--- a/x-pack/docs/en/security/authentication/active-directory-realm.asciidoc
+++ b/x-pack/docs/en/security/authentication/active-directory-realm.asciidoc
@@ -9,7 +9,7 @@ The {security-features} use LDAP to communicate with Active Directory, so
 `active_directory` realms are similar to <<ldap-realm, `ldap` realms>>. Like
 LDAP directories, Active Directory stores users and groups hierarchically. The
 directory's hierarchy is built from containers such as the _organizational unit_
-(`ou`), _organization_ (`o`), and _domain controller_ (`dc`).
+(`ou`), _organization_ (`o`), and _domain component_ (`dc`).
 
 The path to an entry is a _Distinguished Name_ (DN) that uniquely identifies a
 user or group. User and group names typically have attributes such as a
diff --git a/x-pack/docs/en/security/authentication/ldap-realm.asciidoc b/x-pack/docs/en/security/authentication/ldap-realm.asciidoc
index 34c91c6bc13af..2fcadbc52fe0a 100644
--- a/x-pack/docs/en/security/authentication/ldap-realm.asciidoc
+++ b/x-pack/docs/en/security/authentication/ldap-realm.asciidoc
@@ -9,7 +9,7 @@ Lightweight Directory Access Protocol (LDAP) server to authenticate users. See
 LDAP stores users and groups hierarchically, similar to the way folders are
 grouped in a file system. An LDAP directory's hierarchy is built from containers
 such as the _organizational unit_ (`ou`), _organization_ (`o`), and
-_domain controller_ (`dc`).
+_domain component_ (`dc`).
 
 The path to an entry is a _Distinguished Name_ (DN) that uniquely identifies a
 user or group. User and group names typically have attributes such as a