Index: src/main/java/info/magnolia/cms/util/FactoryUtil.java
===================================================================
--- src/main/java/info/magnolia/cms/util/FactoryUtil.java	(revision 20033)
+++ src/main/java/info/magnolia/cms/util/FactoryUtil.java	(working copy)
@@ -295,7 +295,7 @@
         }
 
         protected void startObservation(String handle) {
-            ObservationUtil.registerDefferedChangeListener(ContentRepository.CONFIG, handle, this, 1000, 5000);
+            ObservationUtil.registerDeferredChangeListener(ContentRepository.CONFIG, handle, this, 1000, 5000);
         }
 
         public void onEvent(EventIterator events) {
Index: src/main/java/info/magnolia/cms/security/SystemUserManager.java
===================================================================
--- src/main/java/info/magnolia/cms/security/SystemUserManager.java	(revision 19177)
+++ src/main/java/info/magnolia/cms/security/SystemUserManager.java	(working copy)
@@ -95,7 +95,7 @@
             "mgnl:group",
             anonymousListener);
 
-        ObservationUtil.registerDefferedChangeListener(
+        ObservationUtil.registerDeferredChangeListener(
             ContentRepository.USER_ROLES,
             "/",
             true,
Index: src/main/java/info/magnolia/cms/filters/MgnlMainFilter.java
===================================================================
--- src/main/java/info/magnolia/cms/filters/MgnlMainFilter.java	(revision 20033)
+++ src/main/java/info/magnolia/cms/filters/MgnlMainFilter.java	(working copy)
@@ -117,7 +117,7 @@
     }
 
     protected void startObservation() {
-        ObservationUtil.registerDefferedChangeListener(
+        ObservationUtil.registerDeferredChangeListener(
             ContentRepository.CONFIG,
             SERVER_FILTERS,
             filtersEventListener,