diff --git a/www/analyse.php b/www/analyse.php
index 73fb23a..b263644 100644
--- a/www/analyse.php
+++ b/www/analyse.php
@@ -30,9 +30,7 @@
 <p><input type="submit" name="process" value="<?=_("Analyse")?>"></p>
 </form>
 <?	} else {
-		echo "<pre>";
-		print_r(openssl_x509_parse(openssl_x509_read($_POST['csr'])));
-		echo "</pre>";
+		echo "<pre>".htmlspecialchars(print_r(openssl_x509_parse(openssl_x509_read($_POST['csr'])),true))."</pre>";
 	}
 	showfooter();
 ?>