diff --git a/portlet/src/main/java/org/springframework/security/ui/portlet/PortletAuthenticationDetails.java b/portlet/src/main/java/org/springframework/security/ui/portlet/PortletAuthenticationDetails.java
index 832061fc4c..dbe2870ed3 100644
--- a/portlet/src/main/java/org/springframework/security/ui/portlet/PortletAuthenticationDetails.java
+++ b/portlet/src/main/java/org/springframework/security/ui/portlet/PortletAuthenticationDetails.java
@@ -28,6 +28,6 @@ public class PortletAuthenticationDetails implements Serializable {
     }
     
     public String toString() {
-    	return "User info: " + userInfo.toString();
+    	return "User info: " + userInfo;
     }
 }