diff --git a/browserstack/local.py b/browserstack/local.py
index d7e1618..a1b3397 100644
--- a/browserstack/local.py
+++ b/browserstack/local.py
@@ -24,7 +24,7 @@ def __xstr(self, key, value):
     elif str(value).lower() == "false":
       return ['']
     else:
-      return ['-' + key, value]
+      return ['-' + key, str(value)]
 
   def get_package_version(self):
     name = "browserstack-local"
diff --git a/setup.py b/setup.py
index 1c9b2a1..045a6b4 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 setup(
   name = 'browserstack-local',
   packages = ['browserstack'],
-  version = '1.2.8',
+  version = '1.2.9',
   description = 'Python bindings for Browserstack Local',
   long_description=open('README.md').read(),
   long_description_content_type='text/markdown',