diff --git a/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/SecurityContext.java b/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/SecurityContext.java
index ac0ded3136..08759ddd1e 100644
--- a/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/SecurityContext.java
+++ b/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/SecurityContext.java
@@ -26,6 +26,9 @@ import java.security.Principal;
  */
 public interface SecurityContext {
 
+	/**
+	 * Empty security context.
+	 */
 	public static SecurityContext NONE = new SecurityContext() {
 
 		@Override