diff --git a/osm_rawdata/postgres.py b/osm_rawdata/postgres.py
index 1eab5ba..74b2422 100755
--- a/osm_rawdata/postgres.py
+++ b/osm_rawdata/postgres.py
@@ -132,7 +132,7 @@ def __init__(self,
 
             # Use a persistant connect, better for multiple requests
             self.session = requests.Session()
-            db = os.getenv('UNDERPASS_API')
+            db = os.getenv('UNDERPASS_API_URL')
             if db:
                 self.url = db
             else: