diff --git a/settings.py b/settings.py
index 42d705f..bb05a8d 100644
--- a/settings.py
+++ b/settings.py
@@ -18,7 +18,7 @@ except ImportError:
     db_host = os.environ.get('STACKTACH_DB_HOST', "")
     db_username = os.environ['STACKTACH_DB_USERNAME']
     db_password = os.environ['STACKTACH_DB_PASSWORD']
-    db_port = os.environ['STACKTACH_DB_PORT']
+    db_port = os.environ['STACKTACH_DB_PORT', ""]
     install_dir = os.environ['STACKTACH_INSTALL_DIR']
 
 DEBUG = False