diff --git a/atlassian/assets.py b/atlassian/assets.py
index 46aea298b..506fb8160 100644
--- a/atlassian/assets.py
+++ b/atlassian/assets.py
@@ -174,7 +174,7 @@ def add_comment_to_object(self, comment, object_id, role):
             raise NotImplementedError
         params = {"comment": comment, "objectId": object_id, "role": role}
         url = "rest/assets/1.0/comment/create"
-        return self.post(url, params=params)
+        return self.post(url, data=params)
 
     def get_comment_of_object(self, object_id):
         """
diff --git a/atlassian/insight.py b/atlassian/insight.py
index 23946ad9f..32724d30c 100644
--- a/atlassian/insight.py
+++ b/atlassian/insight.py
@@ -173,7 +173,7 @@ def add_comment_to_object(self, comment, object_id, role):
             raise NotImplementedError
         params = {"comment": comment, "objectId": object_id, "role": role}
         url = "rest/insight/1.0/comment/create"
-        return self.post(url, params=params)
+        return self.post(url, data=params)
 
     def get_comment_of_object(self, object_id):
         """