diff --git a/config/src/main/java/org/springframework/security/config/annotation/web/configuration/EnableWebSecurity.java b/config/src/main/java/org/springframework/security/config/annotation/web/configuration/EnableWebSecurity.java
index c3d0bbf531..c3e893e804 100644
--- a/config/src/main/java/org/springframework/security/config/annotation/web/configuration/EnableWebSecurity.java
+++ b/config/src/main/java/org/springframework/security/config/annotation/web/configuration/EnableWebSecurity.java
@@ -57,7 +57,7 @@ import org.springframework.security.config.annotation.web.WebSecurityConfigurer;
  *
  *    @Override
  *    protected void registerAuthentication(AuthenticationManagerBuilder auth) {
- *        registry
+ *        auth
  *            // enable in memory based authentication with a user named "user" and "admin"
  *            .inMemoryAuthentication()
  *                .withUser("user").password("password").roles("USER").and()
diff --git a/config/src/main/java/org/springframework/security/config/annotation/web/configuration/WebSecurityConfigurerAdapter.java b/config/src/main/java/org/springframework/security/config/annotation/web/configuration/WebSecurityConfigurerAdapter.java
index 3180b9c4f1..989adf42f6 100644
--- a/config/src/main/java/org/springframework/security/config/annotation/web/configuration/WebSecurityConfigurerAdapter.java
+++ b/config/src/main/java/org/springframework/security/config/annotation/web/configuration/WebSecurityConfigurerAdapter.java
@@ -113,7 +113,7 @@ public abstract class WebSecurityConfigurerAdapter implements SecurityConfigurer
      * <pre>
      * &#064;Override
      * protected void registerAuthentication(AuthenticationManagerBuilder auth) {
-     *     registry
+     *     auth
      *         // enable in memory based authentication with a user named "user" and "admin"
      *         .inMemoryAuthentication()
      *             .withUser("user").password("password").roles("USER").and()