diff --git a/source/java/org/alfresco/repo/security/permissions/impl/acegi/ACLEntryAfterInvocationProvider.java b/source/java/org/alfresco/repo/security/permissions/impl/acegi/ACLEntryAfterInvocationProvider.java
index 48c1d4ef90..2fec38941b 100644
--- a/source/java/org/alfresco/repo/security/permissions/impl/acegi/ACLEntryAfterInvocationProvider.java
+++ b/source/java/org/alfresco/repo/security/permissions/impl/acegi/ACLEntryAfterInvocationProvider.java
@@ -43,8 +43,8 @@ import org.alfresco.repo.search.impl.querymodel.QueryEngineResults;
 import org.alfresco.repo.security.authentication.AuthenticationUtil;
 import org.alfresco.repo.security.permissions.PermissionCheckCollection;
 import org.alfresco.repo.security.permissions.PermissionCheckValue;
-import org.alfresco.repo.security.permissions.PermissionCheckedValue;
 import org.alfresco.repo.security.permissions.PermissionCheckedCollection.PermissionCheckedCollectionMixin;
+import org.alfresco.repo.security.permissions.PermissionCheckedValue;
 import org.alfresco.repo.security.permissions.impl.SimplePermissionReference;
 import org.alfresco.service.cmr.repository.ChildAssociationRef;
 import org.alfresco.service.cmr.repository.NodeRef;
@@ -230,7 +230,7 @@ public class ACLEntryAfterInvocationProvider implements AfterInvocationProvider,
     @SuppressWarnings("rawtypes")
     public Object decide(Authentication authentication, Object object, ConfigAttributeDefinition config, Object returnedObject) throws AccessDeniedException
     {
-        if (log.isDebugEnabled())
+        if (log.isDebugEnabled() && object instanceof MethodInvocation)
         {
             MethodInvocation mi = (MethodInvocation) object;
             log.debug("Method: " + mi.getMethod().toString());