diff --git a/README.md b/README.md
index 51741c2296888ae52256f48e76acf7e0313aa9d5..ab1f082bcfd62c7286db6a98db18af9ec0c72f95 100755
--- a/README.md
+++ b/README.md
@@ -181,7 +181,7 @@ Alessandria and Vercelli, Piedmont, Italy
 * Massimo Canonico
 
 ### Contributors
-* Marco Guazzone [marco.guazzone@uniupo.it](mailto:marco.guazzone@uniupo.it)
+* Marco Guazzone ([marco.guazzone@uniupo.it](mailto:marco.guazzone@uniupo.it))
 
 ### Contact info
 [massimo.canonico@uniupo.it](mailto:massimo.canonico@uniupo.it)