diff --git a/ldap/3.5/modules/ROOT/pages/ldap-connector-reference.adoc b/ldap/3.5/modules/ROOT/pages/ldap-connector-reference.adoc
index 6539fda4c9..bd3cea97bc 100644
--- a/ldap/3.5/modules/ROOT/pages/ldap-connector-reference.adoc
+++ b/ldap/3.5/modules/ROOT/pages/ldap-connector-reference.adoc
@@ -31,6 +31,8 @@ Anypoint Connector for Lightweight Directory Access Protocol (LDAP) enables you
 
 * `simple` - Authenticates using the user DN and password
 * `none` - Does not authenticate
+
+If you set *Authentication* to `none`, set a placeholder value for *Principal DN*.
  | `simple` |
 | URL a| String | The connection URL to the LDAP server.
 
@@ -65,7 +67,9 @@ You can configure *URL* to specify multiple LDAP hosts, for example, `ldap://lda
 | Authentication a| String a| Specifies the authentication mechanism to use. Valid values are:
 
 * `simple` - Authenticates using the user DN and password
-* `none` - Does not authenticate
+* `none` - Does not authenticate 
+
+If you set *Authentication* to `none`, set a placeholder value for *Principal DN*.
  | `simple` |
 
 | URL a| String | The connection URL to the LDAP server.
@@ -101,6 +105,8 @@ You can configure *URL* to specify multiple LDAP hosts, for example, `ldap://lda
 
 * `simple` - Authenticates using the user DN and password
 * `none` - Does not authenticate
+
+If you set *Authentication* to `none`, set a placeholder value for *Principal DN*.
  | `simple` |
 | URL a| String | The connection URL to the LDAP server.