diff --git a/src/main/java/net/fortuna/ical4j/extensions/property/Categories.java b/src/main/java/net/fortuna/ical4j/extensions/property/Categories.java
index 769f345..5319c32 100644
--- a/src/main/java/net/fortuna/ical4j/extensions/property/Categories.java
+++ b/src/main/java/net/fortuna/ical4j/extensions/property/Categories.java
@@ -38,6 +38,9 @@ public String getValue() {
     }
 
     public static class Factory extends Content.Factory implements PropertyFactory<Categories> {
+        public Factory() {
+            super(PROPERTY_NAME);
+        }
 
         public Categories createProperty() {
             return new Categories();
diff --git a/src/main/java/net/fortuna/ical4j/extensions/property/Color.java b/src/main/java/net/fortuna/ical4j/extensions/property/Color.java
index 1494a2c..66b263c 100644
--- a/src/main/java/net/fortuna/ical4j/extensions/property/Color.java
+++ b/src/main/java/net/fortuna/ical4j/extensions/property/Color.java
@@ -38,6 +38,9 @@ public String getValue() {
     }
 
     public static class Factory extends Content.Factory implements PropertyFactory<Color> {
+        public Factory() {
+            super(PROPERTY_NAME);
+        }
 
         public Color createProperty() {
             return new Color();
diff --git a/src/main/java/net/fortuna/ical4j/extensions/property/Conference.java b/src/main/java/net/fortuna/ical4j/extensions/property/Conference.java
index aebf140..3d88c07 100644
--- a/src/main/java/net/fortuna/ical4j/extensions/property/Conference.java
+++ b/src/main/java/net/fortuna/ical4j/extensions/property/Conference.java
@@ -38,6 +38,9 @@ public String getValue() {
     }
 
     public static class Factory extends Content.Factory implements PropertyFactory<Conference> {
+        public Factory() {
+            super(PROPERTY_NAME);
+        }
 
         public Conference createProperty() {
             return new Conference();
diff --git a/src/main/java/net/fortuna/ical4j/extensions/property/Description.java b/src/main/java/net/fortuna/ical4j/extensions/property/Description.java
index 68a3b3a..b6cb441 100644
--- a/src/main/java/net/fortuna/ical4j/extensions/property/Description.java
+++ b/src/main/java/net/fortuna/ical4j/extensions/property/Description.java
@@ -38,6 +38,9 @@ public String getValue() {
     }
 
     public static class Factory extends Content.Factory implements PropertyFactory<Description> {
+        public Factory() {
+            super(PROPERTY_NAME);
+        }
 
         public Description createProperty() {
             return new Description();
diff --git a/src/main/java/net/fortuna/ical4j/extensions/property/Image.java b/src/main/java/net/fortuna/ical4j/extensions/property/Image.java
index 7bbaca4..86a06c5 100644
--- a/src/main/java/net/fortuna/ical4j/extensions/property/Image.java
+++ b/src/main/java/net/fortuna/ical4j/extensions/property/Image.java
@@ -38,6 +38,9 @@ public String getValue() {
     }
 
     public static class Factory extends Content.Factory implements PropertyFactory<Image> {
+        public Factory() {
+            super(PROPERTY_NAME);
+        }
 
         public Image createProperty() {
             return new Image();
diff --git a/src/main/java/net/fortuna/ical4j/extensions/property/LastModified.java b/src/main/java/net/fortuna/ical4j/extensions/property/LastModified.java
index 3f2ca69..644f615 100644
--- a/src/main/java/net/fortuna/ical4j/extensions/property/LastModified.java
+++ b/src/main/java/net/fortuna/ical4j/extensions/property/LastModified.java
@@ -38,6 +38,9 @@ public String getValue() {
     }
 
     public static class Factory extends Content.Factory implements PropertyFactory<LastModified> {
+        public Factory() {
+            super(PROPERTY_NAME);
+        }
 
         public LastModified createProperty() {
             return new LastModified();
diff --git a/src/main/java/net/fortuna/ical4j/extensions/property/Name.java b/src/main/java/net/fortuna/ical4j/extensions/property/Name.java
index 2fed6b0..e38edd9 100644
--- a/src/main/java/net/fortuna/ical4j/extensions/property/Name.java
+++ b/src/main/java/net/fortuna/ical4j/extensions/property/Name.java
@@ -38,6 +38,9 @@ public String getValue() {
     }
 
     public static class Factory extends Content.Factory implements PropertyFactory<Name> {
+        public Factory() {
+            super(PROPERTY_NAME);
+        }
 
         public Name createProperty() {
             return new Name();
diff --git a/src/main/java/net/fortuna/ical4j/extensions/property/RefreshInterval.java b/src/main/java/net/fortuna/ical4j/extensions/property/RefreshInterval.java
index 4c09935..e6cdb6d 100644
--- a/src/main/java/net/fortuna/ical4j/extensions/property/RefreshInterval.java
+++ b/src/main/java/net/fortuna/ical4j/extensions/property/RefreshInterval.java
@@ -38,6 +38,9 @@ public String getValue() {
     }
 
     public static class Factory extends Content.Factory implements PropertyFactory<RefreshInterval> {
+        public Factory() {
+            super(PROPERTY_NAME);
+        }
 
         public RefreshInterval createProperty() {
             return new RefreshInterval();
diff --git a/src/main/java/net/fortuna/ical4j/extensions/property/Source.java b/src/main/java/net/fortuna/ical4j/extensions/property/Source.java
index eb4b1f8..082cdc6 100644
--- a/src/main/java/net/fortuna/ical4j/extensions/property/Source.java
+++ b/src/main/java/net/fortuna/ical4j/extensions/property/Source.java
@@ -38,6 +38,9 @@ public String getValue() {
     }
 
     public static class Factory extends Content.Factory implements PropertyFactory<Source> {
+        public Factory() {
+            super(PROPERTY_NAME);
+        }
 
         public Source createProperty() {
             return new Source();
diff --git a/src/main/java/net/fortuna/ical4j/extensions/property/Uid.java b/src/main/java/net/fortuna/ical4j/extensions/property/Uid.java
index f0ee122..22f35d3 100644
--- a/src/main/java/net/fortuna/ical4j/extensions/property/Uid.java
+++ b/src/main/java/net/fortuna/ical4j/extensions/property/Uid.java
@@ -38,6 +38,9 @@ public String getValue() {
     }
 
     public static class Factory extends Content.Factory implements PropertyFactory<Uid> {
+        public Factory() {
+            super(PROPERTY_NAME);
+        }
 
         public Uid createProperty() {
             return new Uid();
diff --git a/src/main/java/net/fortuna/ical4j/extensions/property/Url.java b/src/main/java/net/fortuna/ical4j/extensions/property/Url.java
index 42090a8..3915790 100644
--- a/src/main/java/net/fortuna/ical4j/extensions/property/Url.java
+++ b/src/main/java/net/fortuna/ical4j/extensions/property/Url.java
@@ -38,6 +38,9 @@ public String getValue() {
     }
 
     public static class Factory extends Content.Factory implements PropertyFactory<Url> {
+        public Factory() {
+            super(PROPERTY_NAME);
+        }
 
         public Url createProperty() {
             return new Url();
diff --git a/src/test/groovy/net/fortuna/ical4j/extensions/parameter/LabelTest.groovy b/src/test/groovy/net/fortuna/ical4j/extensions/parameter/LabelTest.groovy
index a16f62f..87e5790 100644
--- a/src/test/groovy/net/fortuna/ical4j/extensions/parameter/LabelTest.groovy
+++ b/src/test/groovy/net/fortuna/ical4j/extensions/parameter/LabelTest.groovy
@@ -29,7 +29,8 @@ PRODID:-//ABC Corporation//NONSGML My Product//EN
 BEGIN:VTODO
 CONFERENCE;VALUE=URI;FEATURE=VIDEO;
  LABEL="Web video chat, access code=76543";
- :http://video-chat.example.com/;group-id=1234END:VTODO
+ :http://video-chat.example.com/;group-id=1234
+END:VTODO
 END:VCALENDAR
 '''