diff --git a/html/labels.html b/html/labels.html
index 47f8e61cfcad4dedb4016d6cad8f2bb9001d9207..ffb39cd66b40ba02ad4b3f1bea9b7649fdf2f16b 100644
--- a/html/labels.html
+++ b/html/labels.html
@@ -48,6 +48,8 @@
 <dd>URI identifying the alignment.</dd>
 <dt>http://knowledgeweb.semanticweb.org/heterogeneity/alignment#method</dd>
 <dd>CLASSNAME of the generating matching method.</dd>
+<dt>http://knowledgeweb.semanticweb.org/heterogeneity/alignment#derivedFrom</dd>
+<dd>URI the alignment from which this one is issued, if applicable</dd>
 <dt>http://knowledgeweb.semanticweb.org/heterogeneity/alignment#parameters</dd>
 <dd>STRING the parameters used with the generating method</dd>
 <dt>http://knowledgeweb.semanticweb.org/heterogeneity/alignment#certificate</dd>