diff --git a/inc/myco.js b/inc/myco.js
index 2e030af..a86d0b8 100644
--- a/inc/myco.js
+++ b/inc/myco.js
@@ -249,6 +249,11 @@ on_show_add_contributor_modal=function(e) {
   $('#add_contributor_modal #add_contributor_name').focus();
 }
 
+validateEmail=function(email) {
+    var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
+    return re.test(email);
+}
+
 on_valid_add_contributor_modal=function(e) {
   e.preventDefault();
   var group=groups[$('#add_contributor_modal').data('group-uuid')];
@@ -268,6 +273,10 @@ on_valid_add_contributor_modal=function(e) {
     alert('Un contributor utilise déjà cet email !');
     return;
   }
+  if (!validateEmail(email)) {
+    alert('Email invalide !');
+    return;
+  }
   if(edit_id=='-1') {
     group.addContributor(new Contributor(name,email));
   }