diff --git a/examples/mqtt.py b/examples/mqtt.py
index 33b9d8a..e37e31e 100644
--- a/examples/mqtt.py
+++ b/examples/mqtt.py
@@ -8,7 +8,7 @@ if os.path.exists(libdir):
     sys.path.append(libdir)
 
 import logging
-from waveshare_epd import epd2in13bc
+from waveshare_epd import epd2in13b
 import time
 from PIL import Image,ImageDraw,ImageFont
 import traceback
@@ -32,7 +32,7 @@ pw = "phio6yiR9ohs1veeghu4WaeGhaiRi8he4EiWasheev4faeku8tohdiuthah7zahP"
 client_id = "solarmonitor"
 
 try:
-    epd = epd2in13bc.EPD()
+    epd = epd2in13b.EPD()
     logging.info("init and Clear")
     epd.init()
     epd.Clear()
@@ -43,7 +43,7 @@ except IOError as e:
     
 except KeyboardInterrupt:    
     logging.info("ctrl + c:")
-    epd2in13bc.epdconfig.module_exit()
+    epd2in13b.epdconfig.module_exit()
     exit()
 
 def on_connect(client, userdata, flags, rc):