diff --git a/nix/nixos-module/container/bird.nix b/nix/nixos-module/container/bird.nix
index 195f967..aa44d69 100644
--- a/nix/nixos-module/container/bird.nix
+++ b/nix/nixos-module/container/bird.nix
@@ -73,7 +73,7 @@ in
           ${if isUpstream
             then ''
               # No RFC1918, RFC6598
-              import where net !~ [ 100.64.0.0/10 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 ];
+              import where net !~ [ 100.64.0.0/10 ] && net !~ [ 10.0.0.0/8 ] && net !~ [ 172.16.0.0/12 ] && net !~ [ 192.168.0.0/16 ];
             ''
             else ""}
         };