diff --git a/core/src/main/java/org/springframework/security/remoting/rmi/ContextPropagatingRemoteInvocation.java b/core/src/main/java/org/springframework/security/remoting/rmi/ContextPropagatingRemoteInvocation.java
index 63b645d258..1c135560d9 100644
--- a/core/src/main/java/org/springframework/security/remoting/rmi/ContextPropagatingRemoteInvocation.java
+++ b/core/src/main/java/org/springframework/security/remoting/rmi/ContextPropagatingRemoteInvocation.java
@@ -63,7 +63,7 @@ public class ContextPropagatingRemoteInvocation extends RemoteInvocation {
         Authentication currentUser = SecurityContextHolder.getContext().getAuthentication();
 
         if (currentUser != null) {
-            principal = currentUser.getPrincipal().toString();
+            principal = currentUser.getName();
             credentials = currentUser.getCredentials().toString();
         } else {
             principal = credentials = null;