diff --git a/static/js/main.js b/static/js/main.js
index e62256a..a3947ec 100644
--- a/static/js/main.js
+++ b/static/js/main.js
@@ -783,6 +783,8 @@ function updateDemandes() {
                 token: localStorage.getItem('token'),
                 type: "state"
             }),
+            contentType: "application/json; charset=utf-8",
+            dataType: "json",
             
             success: function(data) {
                 if(data.success) {