diff --git a/lineage-push/lineage-push.py b/lineage-push/lineage-push.py
index 5a596a7..0bfeb5b 100755
--- a/lineage-push/lineage-push.py
+++ b/lineage-push/lineage-push.py
@@ -5,7 +5,7 @@ from __future__ import print_function
 import re
 import subprocess
 import sys
-from argparse import ArgumentParser
+from argparse import ArgumentParser, ArgumentTypeError
 
 
 def push(args):
@@ -54,6 +54,15 @@ def push(args):
     sys.exit(subprocess.call(command, shell=True))
 
 
+def str2bool(v):
+    if v.lower() in ('yes', 'true', 't', 'y', '1'):
+        return True
+    elif v.lower() in ('no', 'false', 'f', 'n', '0'):
+        return False
+    else:
+        raise ArgumentTypeError('Boolean value expected.')
+
+
 def parse_cmdline():
     parser = ArgumentParser(
         description='Pushes a local git repository\'s changes to Gerrit for code review')