diff --git a/sigil/eclipse/core/src/org/apache/felix/sigil/eclipse/internal/model/repository/RepositoryPreferences.java b/sigil/eclipse/core/src/org/apache/felix/sigil/eclipse/internal/model/repository/RepositoryPreferences.java
index 0ad3745..46e0899 100644
--- a/sigil/eclipse/core/src/org/apache/felix/sigil/eclipse/internal/model/repository/RepositoryPreferences.java
+++ b/sigil/eclipse/core/src/org/apache/felix/sigil/eclipse/internal/model/repository/RepositoryPreferences.java
@@ -372,7 +372,7 @@
         {            
             public void propertyChange(PropertyChangeEvent event)
             {
-                model.getProperties().setProperty(event.getProperty(), (String) event.getNewValue());
+                model.getProperties().setProperty(event.getProperty(), event.getNewValue().toString());
             }
         });