diff --git a/html/tutorial/tutorial1/index.html b/html/tutorial/tutorial1/index.html
index c4c07d8494548fc380ddbfef6d7fd51a54ff2376..dc0d52c527b821caa8a619c4c46cbf32d4062eab 100644
--- a/html/tutorial/tutorial1/index.html
+++ b/html/tutorial/tutorial1/index.html
@@ -239,7 +239,7 @@ $ java -jar ../../../lib/procalign.jar -i fr.inrialpes.exmo.align.impl.method.St
 
 <p><b>Other manipulations:</b> It is possible to invert an alignment with the following command:</p>
 <div class="terminal">
-$ java -cp ../../../lib/procalign.jar fr.inrialpes.exmo.align.cli.ParserPrinter file:results/SMOA5.rdf -o results/AOMS5.rdf
+$ java -cp ../../../lib/procalign.jar fr.inrialpes.exmo.align.cli.ParserPrinter -i file:results/SMOA5.rdf -o results/AOMS5.rdf
 </div>
 <p>See the output in <a href="results/AOMS5.rdf"><abbr>RDF</abbr>/<abbr>XML</abbr></a> or <a href="results/AOMS5.html"><abbr>HTML</abbr></a> (if rendered as before). The results is an alignment from the source to the target. Inverting alignment is only the exchange of the order of the elements in the alignment file. This can be useful when you have an alignment of <i>A</i> to <i>B</i>, an alignment from <i>C</i> to <i>B</i> and you want to go from <i>A</i> to <i>C</i>. The solution is then to invert the second alignment and to compose them.</p>