diff --git a/http/base/src/main/java/org/apache/felix/http/base/internal/registry/EventListenerRegistry.java b/http/base/src/main/java/org/apache/felix/http/base/internal/registry/EventListenerRegistry.java
index 825ac44..22c2f43 100644
--- a/http/base/src/main/java/org/apache/felix/http/base/internal/registry/EventListenerRegistry.java
+++ b/http/base/src/main/java/org/apache/felix/http/base/internal/registry/EventListenerRegistry.java
@@ -206,7 +206,7 @@
     {
         for (final HttpSessionAttributeListener l : sessionAttributeListeners.getActiveListeners())
         {
-            l.attributeReplaced(event);
+            l.attributeRemoved(event);
         }
     }
 
@@ -215,7 +215,7 @@
     {
         for (final HttpSessionAttributeListener l : sessionAttributeListeners.getActiveListeners())
         {
-            l.attributeReplaced(event);
+            l.attributeAdded(event);
         }
     }
 
@@ -233,7 +233,7 @@
     {
         for (final ServletContextAttributeListener l : contextAttributeListeners.getActiveListeners())
         {
-            l.attributeReplaced(event);
+            l.attributeRemoved(event);
         }
     }
 
@@ -242,7 +242,7 @@
     {
         for (final ServletContextAttributeListener l : contextAttributeListeners.getActiveListeners())
         {
-            l.attributeReplaced(event);
+            l.attributeAdded(event);
         }
     }