diff --git a/src/openvpn/socks.c b/src/openvpn/socks.c
index ed2d9e9..1e99c9a 100644
--- a/src/openvpn/socks.c
+++ b/src/openvpn/socks.c
@@ -143,7 +143,7 @@
     }
 
     /* VER = 5, SUCCESS = 0 --> auth success */
-    if (buf[0] != 5 && buf[1] != 0)
+    if (buf[0] != 5 || buf[1] != 0)
     {
         msg(D_LINK_ERRORS, "socks_username_password_auth: server refused the authentication");
         goto cleanup;