diff --git a/escpos/cli.py b/escpos/cli.py
index fa50f0a..07d0de8 100755
--- a/escpos/cli.py
+++ b/escpos/cli.py
@@ -6,7 +6,6 @@ import argparse
 import sys
 import serial
 from escpos import printer
-from escpos import constants
 
 parser = argparse.ArgumentParser(
     description='CLI for python-escpos',