diff --git a/ipojo/src/main/java/org/apache/felix/ipojo/architecture/PropertyDescription.java b/ipojo/src/main/java/org/apache/felix/ipojo/architecture/PropertyDescription.java
index 51e92e2..1b98ea6 100644
--- a/ipojo/src/main/java/org/apache/felix/ipojo/architecture/PropertyDescription.java
+++ b/ipojo/src/main/java/org/apache/felix/ipojo/architecture/PropertyDescription.java
@@ -71,7 +71,7 @@
      */
     public String toString() {
         if (m_value != null) { return getName() + " - " + getType() + " - " + getValue(); }
-        else { return getName() + " - " + getType() + " - CONFIGURABLE"; }
+        else { return getName() + " - " + getType() + " - REQUIRED"; }
     }
 
 }
diff --git a/ipojo/src/main/java/org/apache/felix/ipojo/handlers/configuration/ConfigurationHandler.java b/ipojo/src/main/java/org/apache/felix/ipojo/handlers/configuration/ConfigurationHandler.java
index cdec550..557e164 100644
--- a/ipojo/src/main/java/org/apache/felix/ipojo/handlers/configuration/ConfigurationHandler.java
+++ b/ipojo/src/main/java/org/apache/felix/ipojo/handlers/configuration/ConfigurationHandler.java
@@ -125,7 +125,7 @@
             ConfigurableProperty cp = new ConfigurableProperty(name, fieldName, value, type, this);
             
             if (cp.getValue() != null) { cd.addProperty(new PropertyDescription(name, type, cp.getValue().toString())); }
-            else { cd.addProperty(new PropertyDescription(name, type, "")); }
+            else { cd.addProperty(new PropertyDescription(name, type, null)); }
 
             addProperty(cp);
         }