diff --git a/RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd7in5_V2.py b/RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd7in5_V2.py
index 5cc8460..a654a83 100644
--- a/RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd7in5_V2.py
+++ b/RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd7in5_V2.py
@@ -131,7 +131,7 @@ class EPD:
 	logger.debug("e-Paper busy")
 	# self.send_command(0x71)
 	iter = 0
-        while epdconfig.digital_read(self.busy_pin) == 0:
+	while epdconfig.digital_read(self.busy_pin) == 0:
 		# self.send_command(0x71)
 		epdconfig.delay_ms(100)
 		iter += 1