diff --git a/demo2-instance-with-init-script.py b/demo2-instance-with-init-script.py
index 3ad1111..2a2c6a8 100644
--- a/demo2-instance-with-init-script.py
+++ b/demo2-instance-with-init-script.py
@@ -182,7 +182,7 @@ def main():  # noqa: C901 pylint: disable=too-many-branches,too-many-statements,
     appid = "d69be046470a4d7a947bf8cc3f7fb260"
     appsecret = "tX_SSPqbYgQ8bkRRXgeBGxalAPXXiOpLrTAtTk3c79ijFDoFIIrPzTZIEs7NMpBwBT-z9FtJCy3hyjW1-AJmbQ"
     userdata = '#!/usr/bin/env bash\n' \
-               f'export APPCRED_ID="{appid}"\n' \ 
+               f'export APPCRED_ID="{appid}"\n' \
                f'export APPCRED_SECRET="{appsecret}"\n' \
                f'curl -L -s {hsfd_faafo_cloud_init_script} | bash -s -- ' \
                '-i faafo -i messaging -r api -r worker -r demo\n'
diff --git a/faafo/faafo/api/service.py b/faafo/faafo/api/service.py
index d4d3fcb..fce586c 100644
--- a/faafo/faafo/api/service.py
+++ b/faafo/faafo/api/service.py
@@ -14,6 +14,7 @@ import base64
 import copy
 import hashlib
 import io
+import os
 import socket
 import uuid
 from pkg_resources import resource_filename