Fix name of event method.
@@ -446,7 +446,7 @@ _papplSystemWebAddPrinter(
" <tr><th></th><td><input type=\"submit\" value=\"Add Printer\"></td></tr>\n"
" </tbody></table>\n"
" </form>\n"
- " <script>document.forms['form']['device_uri'].onChange = function () {\n"
+ " <script>document.forms['form']['device_uri'].onchange = function () {\n"
" if (this.value == 'socket') {\n"
" document.forms['form']['hostname'].disabled = false;\n"
" document.forms['form']['hostname'].required = true;\n"
