diff --git a/setup.py b/setup.py
index fb84e02..8fffc86 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@ print("Using version: {str(os.environ['VERSION'])}")
 
 setuptools.setup(
     name="complib",
-    version=str(os.environ["VERSION"]),
+    version=str(os.environ.get('VERSION', "")),
     author="F-WuTs",
     author_email="joel.klimont@comp-air.at",
     description="",