diff --git a/adminer/select.inc.php b/adminer/select.inc.php
index 621aab86..12837ae5 100644
--- a/adminer/select.inc.php
+++ b/adminer/select.inc.php
@@ -488,7 +488,7 @@ if (!$columns) {
 <input type="submit" value="<?php echo lang('Save'); ?>"<?php echo ($_GET["modify"] ? '' : ' title="' . lang('Ctrl+click on a value to modify it.') . '" class="jsonly"'); ?>>
 <input type="submit" name="edit" value="<?php echo lang('Edit'); ?>">
 <input type="submit" name="clone" value="<?php echo lang('Clone'); ?>">
-<input type="submit" name="delete" value="<?php echo lang('Delete'); ?>" onclick="return confirm('<?php echo lang('Are you sure?'); ?> (' + (this.form['all'].checked ? <?php echo $found_rows; ?> : formChecked(this, /check/)) + ')');">
+<input type="submit" name="delete" value="<?php echo lang('Delete'); ?>" onclick="return confirm('<?php echo lang('Are you sure?'); ?> (' + (this.form['all'].checked ? '<?php echo $found_rows; ?>' : formChecked(this, /check/)) + ')');">
 </div></fieldset>
 <?php
 			}