diff --git a/README.md b/README.md
index 40a1b7e..ac3feaa 100644
--- a/README.md
+++ b/README.md
@@ -104,7 +104,7 @@ dc_api.upvote(board_id="programming", is_miner=False, doc_no=doc_no, num=10)
 
 # login
 # if you skip the sess parameter, it will use the default session(and it affects all other API calls that use default session)
-sess = dc_api.get_session()
+sess = dc_api.gen_session()
 dc_api.login(id="", pw="", sess=sess)
 
 # write doc with logined session
diff --git a/dc_api.py b/dc_api.py
index a6ae3ed..66cf0b6 100644
--- a/dc_api.py
+++ b/dc_api.py
@@ -184,7 +184,7 @@ def write_comment(board_id, doc_id, contents="", dccon_id="", dccon_src="", pare
             hide_robot: "1",
             }
     if dccon_id: payload["detail_idx"] = dccon_id
-    if dccon_src: payload["comment_memo"] = "<img src='{}' class='written_dccon'>".format(dccon_src)
+    if dccon_src: payload["comment_memo"] = "<img src='{}' class='written_dccon' alt='1'>".format(dccon_src)
     parsed = json.loads(sess.post(url, headers=header, data=payload, timeout=TIMEOUT).text)
     if "data" not in parsed:
         raise Exception("Error while writing comment: " + str(parsed))