diff --git a/design.html b/design.html
index b2ebeec6..a50d64cb 100644
--- a/design.html
+++ b/design.html
@@ -53,8 +53,8 @@ quote <i>Simplicity is prerequisite for reliability</i>.
 </p>
 
 <p>
-Extensive and automated tests with the runtime checker <a href="http://valgrind.org/">valgrind</a>,
-the <a href="https://github.com/google/sanitizers">Google sanitizer</a>.
+Extensive and automated tests with the runtime checker <a href="http://valgrind.org/">valgrind</a>
+and with the <a href="https://github.com/google/sanitizers">Google sanitizer</a>
 are done to ensure the correctness of the final application.
 The test has a <a href="cov/">code coverage of over 90%</a>, measured with <a href="http://ltp.sourceforge.net/coverage/lcov.php">lcov</a>.
 </p>