diff --git a/src/wrike_ist/azure.cljs b/src/wrike_ist/azure.cljs
index 1e7dfe6..84e0fbd 100644
--- a/src/wrike_ist/azure.cljs
+++ b/src/wrike_ist/azure.cljs
@@ -10,7 +10,8 @@
   (some-> js/process .-env .-AZURE_TOKEN .trim))
 
 (defn- headers []
-  {:Authorization (str "Basic " (js/btoa (str ":" (azure-token))))})
+  {:Authorization (str "Basic " (js/btoa (str ":" (azure-token))))
+   :Content-Type "application/json"})
 
 (defn parse-body
    [response]
@@ -54,8 +55,7 @@
                        (get (parse-body response) "comments"))))
              (.then (fn add-link-comment [& _]
                       (let [comment-text (link-html details)
-                            params (clj->js {:text comment-text
-                                             :plainText false})]
+                            params (clj->js {:text comment-text})]
                         (js/console.log (str "add-link-comment: params:" (js/JSON.stringify params)))
                         (-> (http/post uri {:headers (headers)
                                         :body (js/JSON.stringify params)})