diff --git a/src/fr/inrialpes/exmo/align/util/GroupAlign.java b/src/fr/inrialpes/exmo/align/util/GroupAlign.java
index e47f76c207ae9cf505ddc2348bea913c83008bc3..dddcedae49c26fa0dec71c0c8aaca054769e95a9 100644
--- a/src/fr/inrialpes/exmo/align/util/GroupAlign.java
+++ b/src/fr/inrialpes/exmo/align/util/GroupAlign.java
@@ -37,6 +37,7 @@ import org.semanticweb.owl.align.AlignmentVisitor;
 import org.semanticweb.owl.align.Parameters;
 
 import fr.inrialpes.exmo.align.impl.Annotations;
+import fr.inrialpes.exmo.align.impl.Namespace;
 import fr.inrialpes.exmo.align.impl.BasicParameters;
 import fr.inrialpes.exmo.align.parser.AlignmentParser;
 import fr.inrialpes.exmo.align.onto.OntologyFactory;
@@ -301,7 +302,7 @@ public class GroupAlign {
 	long time = System.currentTimeMillis();
 	result.align(init, params); // add opts
 	long newTime = System.currentTimeMillis();
-	result.setExtension( Annotations.ALIGNNS, Annotations.TIME, Long.toString(newTime - time) );
+	result.setExtension( Namespace.ALIGNMENT.uri, Annotations.TIME, Long.toString(newTime - time) );
 
 	if (debug > 1) System.err.println(" Alignment performed");
 
diff --git a/src/fr/inrialpes/exmo/align/util/Procalign.java b/src/fr/inrialpes/exmo/align/util/Procalign.java
index 134ed629a7d24c3b1d36806e895567ad276513e6..e09e56caf566d54885ce85389b9330ce1c9455e2 100644
--- a/src/fr/inrialpes/exmo/align/util/Procalign.java
+++ b/src/fr/inrialpes/exmo/align/util/Procalign.java
@@ -33,6 +33,7 @@ import org.semanticweb.owl.align.AlignmentVisitor;
 import org.semanticweb.owl.align.Parameters;
 
 import fr.inrialpes.exmo.align.impl.Annotations;
+import fr.inrialpes.exmo.align.impl.Namespace;
 import fr.inrialpes.exmo.align.impl.BasicParameters;
 
 import java.io.OutputStream;
@@ -242,7 +243,7 @@ public class Procalign {
 	    long time = System.currentTimeMillis();
 	    result.align(  init, params ); // add opts
 	    long newTime = System.currentTimeMillis();
-	    result.setExtension( Annotations.ALIGNNS, Annotations.TIME, Long.toString(newTime - time) );
+	    result.setExtension( Namespace.ALIGNMENT.uri, Annotations.TIME, Long.toString(newTime - time) );
 
 	    // Thresholding
 	    if (threshold != 0) result.cut( cutMethod, threshold );