diff --git a/question/category_class.php b/question/category_class.php
index 92cf4857858..de9c46df4ac 100644
--- a/question/category_class.php
+++ b/question/category_class.php
@@ -383,11 +383,11 @@ class question_category_object {
             $this->output_edit_single_table($category,$page);
             echo '</td></tr></table>';
             echo '<p><div align="center"><form action="category.php" method="get">
-                <fieldset class="invisiblefieldset">
+                <div>
                 <input type="hidden" name="sesskey" value="'.$USER->sesskey.'" />
                 <input type="hidden" name="id" value="' . $this->course->id . '" />
                 <input type="submit" value="' . $this->str->cancel . '" />
-                </fieldset>
+                </div>
                 </form>
                 </div></p>';
             print_footer($this->course);
diff --git a/question/editlib.php b/question/editlib.php
index 4c9907c05d4..9ad4be49a21 100644
--- a/question/editlib.php
+++ b/question/editlib.php
@@ -131,10 +131,10 @@ function question_category_form($course, $current, $recurse=1, $showhidden=false
     popup_form ("edit.php?courseid=$course->id&amp;cat=", $catmenu, "catmenu", $current, "", "", "", false, "self");
     echo "</td><td align=\"right\">";
     echo "<form method=\"get\" action=\"$CFG->wwwroot/question/category.php\">";
-    echo "<fieldset class='invisiblefieldset'>";
+    echo "<div>";
     echo "<input type=\"hidden\" name=\"id\" value=\"$course->id\" />";
     echo "<input type=\"submit\" value=\"$streditcats\" />";
-    echo '</fieldset>';
+    echo '</div>';
     echo "</form>";
     echo '</td></tr></table>';