diff --git a/lambda_uploader/package.py b/lambda_uploader/package.py
index 08bb822..44222ce 100644
--- a/lambda_uploader/package.py
+++ b/lambda_uploader/package.py
@@ -75,7 +75,7 @@ def install_requirements(self, requirements):
             LOG.debug("Installing requirements found %s in config"
                       % requirements)
             cmd = [os.path.join(self._pkg_venv, self._venv_pip),
-                   'install', " ".join(requirements)]
+                   'install'] + requirements
 
         elif os.path.isfile("requirements.txt"):
             # Pip install