diff --git a/tcp_tests/helpers/utils.py b/tcp_tests/helpers/utils.py
index 6717c2a..bf4eab4 100644
--- a/tcp_tests/helpers/utils.py
+++ b/tcp_tests/helpers/utils.py
@@ -169,6 +169,7 @@
 def dump_keyfile(file_path, key):
     key = paramiko.RSAKey(file_obj=StringIO.StringIO(key['private']))
     key.write_private_key_file(file_path)
+    os.chmod(file_path, 0644)
 
 
 def clean_dir(dirpath):