diff --git a/openvpn.py b/openvpn.py
index 094e0b2..5669cb7 100644
--- a/openvpn.py
+++ b/openvpn.py
@@ -81,7 +81,7 @@ class Openvpn:
         self.additional_cfg = ovpn_config.get("additional_cfg", {})
         self.ping_timeout = int(ovpn_config.get("ping_timeout", 100))
         self.n_up = int(ovpn_config.get("n_up", 5))
-        self.n_down = int(ovpn_config.get("n_down"), 2)
+        self.n_down = int(ovpn_config.get("n_down", 2))
         assert self.ping_timeout > 0, "invalid ping_timeout value"
         assert self.n_up >= 0 and self.n_down >= 0, "invalid n_up or n_down value"