diff --git a/pytchat/config/__init__.py b/pytchat/config/__init__.py
index 4f26a1e..f9909b5 100644
--- a/pytchat/config/__init__.py
+++ b/pytchat/config/__init__.py
@@ -4,7 +4,9 @@ from base64 import a85decode as dc
 headers = {
     'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.183 Safari/537.36 Edg/86.0.622.63,gzip(gfe)',
 }
-
+m_headers = {
+    'user-agent': 'Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Mobile Safari/537.36 Edg/91.0.864.59',
+}
 _sml = dc(b"BQS?8F#ks-GB\\6`H#IhIF^eo7@rH3;H#IhIF^eor06T''Ch\\'(?XmbXF>%9<FC/iuG%G#jBOQ!ICLqcS5tQB2;gCZ)?UdXC;f$GR3)MM2<(0>O7mh!,G@+K5?SO9T@okV").decode()
 _smr = dc(b"BQS?8F#ks-GB\\6`H#IhIF^eo7@rH3;H#IhIF^eor06T''Ch\\'(?XmbXF>%9<FC/iuG%G#jBOQ!iEb03+@<k(QAU-F)8U=fDGsP557S5F7CiNH7;)D3N77^*B6YU@\\?WfBr0emZX=#^").decode()
 
diff --git a/pytchat/util/__init__.py b/pytchat/util/__init__.py
index 6a6e0f2..d5ad918 100644
--- a/pytchat/util/__init__.py
+++ b/pytchat/util/__init__.py
@@ -13,6 +13,8 @@ PATTERN_YTURL = re.compile(r"((?<=(v|V)/)|(?<=be/)|(?<=(\?|\&)v=)|(?<=embed/))([
 
 PATTERN_CHANNEL = re.compile(r"\\\"channelId\\\":\\\"(.{24})\\\"")
 
+PATTERN_M_CHANNEL = re.compile(r"\"channelId\":\"(.{24})\"")
+
 YT_VIDEO_ID_LENGTH = 11
 
 CLIENT_VERSION = ''.join(("2.", (datetime.datetime.today() - datetime.timedelta(days=1)).strftime("%Y%m%d"), ".01.00"))
@@ -100,6 +102,19 @@ def extract_video_id(url_or_id: str) -> str:
 def get_channelid(client, video_id):
     resp = client.get("https://www.youtube.com/embed/{}".format(quote(video_id)), headers=config.headers)  
     match = re.search(PATTERN_CHANNEL, resp.text)
+    try:
+        if match is None:
+            raise IndexError
+        ret = match.group(1)
+    except IndexError:
+        ret = get_channelid_2nd(client, video_id)
+    return ret
+
+
+def get_channelid_2nd(client, video_id):
+    resp = client.get("https://m.youtube.com/watch?v={}".format(quote(video_id)), headers=config.m_headers)  
+    
+    match = re.search(PATTERN_M_CHANNEL, resp.text)
     if match is None:
         raise InvalidVideoIdException(f"Cannot find channel id for video id:{video_id}. This video id seems to be invalid.")
     try:
@@ -108,9 +123,21 @@ def get_channelid(client, video_id):
         raise InvalidVideoIdException(f"Invalid video id: {video_id}")
     return ret
 
+
 async def get_channelid_async(client, video_id):
     resp = await client.get("https://www.youtube.com/embed/{}".format(quote(video_id)), headers=config.headers)  
     match = re.search(PATTERN_CHANNEL, resp.text)
+    try:
+        if match is None:
+            raise IndexError
+        ret = match.group(1)
+    except IndexError:
+        ret = await get_channelid_async_2nd(client, video_id)
+    return ret
+
+async def get_channelid_async_2nd(client, video_id):
+    resp = await client.get("https://m.youtube.com/watch?v={}".format(quote(video_id)), headers=config.m_headers)  
+    match = re.search(PATTERN_M_CHANNEL, resp.text)
     if match is None:
         raise InvalidVideoIdException(f"Cannot find channel id for video id:{video_id}. This video id seems to be invalid.")
     try: