diff --git a/resources/waveshare_epd/epd2in13_V3.py b/resources/waveshare_epd/epd2in13_V3.py
index d320c33..c19c771 100644
--- a/resources/waveshare_epd/epd2in13_V3.py
+++ b/resources/waveshare_epd/epd2in13_V3.py
@@ -199,8 +199,11 @@ class EPD:
     function : Initialize the e-Paper register
     parameter:
     '''
-    def init(self):
-        if (epdconfig.module_init() != 0):
+    def init(self, update=None):
+        if update is None:
+            update = self.FULL_UPDATE
+
+        if epdconfig.module_init() != 0:
             return -1
         # EPD hardware init start
         self.reset()