diff --git a/create-workspace.py b/create-workspace.py
index c1aa453d..3ed63bff 100755
--- a/create-workspace.py
+++ b/create-workspace.py
@@ -51,7 +51,7 @@ def main():
         if args.no_pip_install_deps:
             sys.exit('virtualenv missing: pip install --user virtualenv')
         else:
-            subprocess.call('pip install --user virtualenv')
+            subprocess.check_output('pip install --user virtualenv', shell=True)
 
         import virtualenv