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 <p>
 ONELAB is an open-source, lightweight interface to finite element software. It
 is completely free: the default ONELAB software bundle contains the mesh
-generator <a href="http://gmsh.info">Gmsh</a> and the finite element solver
-<a href="http://getdp.info">GetDP</a>. Many other codes (free or not) can be
-easily interfaced as well.
+generator <a href="http://gmsh.info">Gmsh</a>, the finite element solver
+<a href="http://getdp.info">GetDP</a> and the optimization
+library <a href="http://onelab.info/optlab">OPTLAB</a>. Many other codes (free
+or not) can be easily interfaced as well.
 </p>
 
 <h2>Getting started</h2>