diff --git a/src/fr/devinsy/xidyn/presenters/URLPresenter.java b/src/fr/devinsy/xidyn/presenters/URLPresenter.java
index e37ae31..0ddbd21 100644
--- a/src/fr/devinsy/xidyn/presenters/URLPresenter.java
+++ b/src/fr/devinsy/xidyn/presenters/URLPresenter.java
@@ -26,6 +26,7 @@ public class URLPresenter extends StringPresenter
 	 */
 	public URLPresenter()
 	{
+		super();
 		setSource((URL) null);
 	}
 
@@ -34,6 +35,7 @@ public class URLPresenter extends StringPresenter
 	 */
 	public URLPresenter(final String source)
 	{
+		super();
 		setSource(source);
 	}
 
@@ -42,6 +44,7 @@ public class URLPresenter extends StringPresenter
 	 */
 	public URLPresenter(final URL source)
 	{
+		super();
 		setSource(source);
 	}