diff --git a/core/src/main/java/org/acegisecurity/afterinvocation/BasicAclEntryAfterInvocationCollectionFilteringProvider.java b/core/src/main/java/org/acegisecurity/afterinvocation/BasicAclEntryAfterInvocationCollectionFilteringProvider.java
index e2b96d410e..c35e751f8c 100644
--- a/core/src/main/java/org/acegisecurity/afterinvocation/BasicAclEntryAfterInvocationCollectionFilteringProvider.java
+++ b/core/src/main/java/org/acegisecurity/afterinvocation/BasicAclEntryAfterInvocationCollectionFilteringProvider.java
@@ -342,7 +342,7 @@ class CollectionFilterer implements Filterer {
      * @see org.acegisecurity.afterinvocation.Filterer#remove(java.lang.Object)
      */
     public void remove(Object object) {
-        collectionIter.remove();
+        removeList.add(object);
     }
 }