diff --git a/source/includes/fundamentals/code-snippets/auth-credentials-gssapi-properties.rst b/source/includes/fundamentals/code-snippets/auth-credentials-gssapi-properties.rst
index f4ec395ce..44fa2e0de 100644
--- a/source/includes/fundamentals/code-snippets/auth-credentials-gssapi-properties.rst
+++ b/source/includes/fundamentals/code-snippets/auth-credentials-gssapi-properties.rst
@@ -1,5 +1,5 @@
 .. code-block:: java
 
-   MongoCredential credential = MongoCredential.createGSSAPICredential(<db_username>);
+   MongoCredential credential = MongoCredential.createGSSAPICredential(<principal_username>);
    credential = credential.withMechanismProperty(MongoCredential.SERVICE_NAME_KEY, "myService");
 
diff --git a/source/includes/fundamentals/code-snippets/auth-credentials-gssapi-subject-key.rst b/source/includes/fundamentals/code-snippets/auth-credentials-gssapi-subject-key.rst
index a5c1da73c..bb8dac028 100644
--- a/source/includes/fundamentals/code-snippets/auth-credentials-gssapi-subject-key.rst
+++ b/source/includes/fundamentals/code-snippets/auth-credentials-gssapi-subject-key.rst
@@ -4,6 +4,6 @@
    loginContext.login();
    Subject subject = loginContext.getSubject();
 
-   MongoCredential credential = MongoCredential.createGSSAPICredential(<db_username>);
+   MongoCredential credential = MongoCredential.createGSSAPICredential(<principal_username>);
    credential = credential.withMechanismProperty(MongoCredential.JAVA_SUBJECT_KEY, subject);
 
diff --git a/source/includes/fundamentals/code-snippets/auth-credentials-gssapi-ticket-cache.rst b/source/includes/fundamentals/code-snippets/auth-credentials-gssapi-ticket-cache.rst
index b446e3987..7070930ed 100644
--- a/source/includes/fundamentals/code-snippets/auth-credentials-gssapi-ticket-cache.rst
+++ b/source/includes/fundamentals/code-snippets/auth-credentials-gssapi-ticket-cache.rst
@@ -3,7 +3,7 @@
    /* all MongoClient instances sharing this instance of KerberosSubjectProvider
    will share a Kerberos ticket cache */
    String myLoginContext = "myContext";
-   MongoCredential credential = MongoCredential.createGSSAPICredential(<db_username>);
+   MongoCredential credential = MongoCredential.createGSSAPICredential(<principal_username>);
    /* login context defaults to "com.sun.security.jgss.krb5.initiate"
    if unspecified in KerberosSubjectProvider */
    credential = credential.withMechanismProperty(MongoCredential.JAVA_SUBJECT_PROVIDER_KEY,
diff --git a/source/includes/fundamentals/code-snippets/auth-credentials-gssapi.rst b/source/includes/fundamentals/code-snippets/auth-credentials-gssapi.rst
index 5f76050a4..0cb0795f9 100644
--- a/source/includes/fundamentals/code-snippets/auth-credentials-gssapi.rst
+++ b/source/includes/fundamentals/code-snippets/auth-credentials-gssapi.rst
@@ -1,6 +1,6 @@
 .. code-block:: java
 
-   MongoCredential credential = MongoCredential.createGSSAPICredential(<db_username>);
+   MongoCredential credential = MongoCredential.createGSSAPICredential(<principal_username>);
 
    MongoClient mongoClient = MongoClients.create(
        MongoClientSettings.builder()
diff --git a/source/includes/fundamentals/code-snippets/auth-credentials-ldap.rst b/source/includes/fundamentals/code-snippets/auth-credentials-ldap.rst
index d539843dc..a2b19de44 100644
--- a/source/includes/fundamentals/code-snippets/auth-credentials-ldap.rst
+++ b/source/includes/fundamentals/code-snippets/auth-credentials-ldap.rst
@@ -1,6 +1,6 @@
 .. code-block:: java
 
-   MongoCredential credential = MongoCredential.createPlainCredential(<db_username>, "$external", <db_password>);
+   MongoCredential credential = MongoCredential.createPlainCredential(<username>, "$external", <db_password>);
 
    MongoClient mongoClient = MongoClients.create(
        MongoClientSettings.builder()
diff --git a/source/security/enterprise-auth.txt b/source/security/enterprise-auth.txt
index a2d77c091..7e66a53fe 100644
--- a/source/security/enterprise-auth.txt
+++ b/source/security/enterprise-auth.txt
@@ -62,7 +62,7 @@ principal name.
 The following code snippets show how to specify the authentication mechanism,
 using the following placeholders:
 
-- ``username``: your URL-encoded principal name, such as ``"username%40REALM.ME"``
+- ``principal_username``: your URL-encoded principal name, such as ``"username%40REALM.ME"``
 - ``hostname``: network address of your MongoDB deployment that your
   client can access
 - ``port``: port number of your MongoDB deployment
@@ -91,7 +91,7 @@ mechanism:
 
       .. code-block:: java
 
-         MongoClient mongoClient = MongoClients.create("<db_username>@<hostname>:<port>/?authSource=$external&authMechanism=GSSAPI");
+         MongoClient mongoClient = MongoClients.create("<principal_username>@<hostname>:<port>/?authSource=$external&authMechanism=GSSAPI");
 
    .. tab::
       :tabid: MongoCredential
@@ -150,7 +150,7 @@ You might need to specify one or more of the following additional
 
       .. code-block:: java
 
-         MongoClient mongoClient = MongoClients.create("<db_username>@<hostname>:<port>/?authSource=$external&authMechanism=GSSAPI&authMechanismProperties=SERVICE_NAME:myService");
+         MongoClient mongoClient = MongoClients.create("<principal_username>@<hostname>:<port>/?authSource=$external&authMechanism=GSSAPI&authMechanismProperties=SERVICE_NAME:myService");
 
    .. tab::
       :tabid: MongoCredential
@@ -276,7 +276,7 @@ mechanism:
 
       .. code-block:: java
 
-         MongoClient mongoClient = MongoClients.create("<db_username>:<db_password>@<hostname>:<port>/?authSource=$external&authMechanism=PLAIN");
+         MongoClient mongoClient = MongoClients.create("<username>:<password>@<hostname>:<port>/?authSource=$external&authMechanism=PLAIN");
 
    .. tab::
       :tabid: MongoCredential