--- a/tools/qdoc3/javadocgenerator.cpp	Mon Jun 21 22:38:13 2010 +0100
+++ b/tools/qdoc3/javadocgenerator.cpp	Thu Jul 22 16:41:55 2010 +0100
@@ -145,7 +145,7 @@
     HtmlGenerator::generateTree(tree, marker);
 }
 
-QString JavadocGenerator::fileExtension(const Node *node)
+QString JavadocGenerator::fileExtension(const Node *node) const
 {
     if (node->type() == Node::Fake) {
         return "html";