diff --git a/doc/xsltproc2.html b/doc/xsltproc2.html
index 8662c883..e24e456d 100644
--- a/doc/xsltproc2.html
+++ b/doc/xsltproc2.html
@@ -21,7 +21,7 @@ Usage: xsltproc [options] stylesheet file [file ...]
       --timing: display the time used
       --repeat: run the transformation 20 times
       --debug: dump the tree of the result instead
-      --novalid: skip the Dtd loading phase
+      --novalid: skip the DTD loading phase
       --noout: do not dump the result
       --maxdepth val : increase the maximum depth
       --html: the input document is(are) an HTML file(s)