diff --git a/ops/nixos/lib/blade.nix b/ops/nixos/lib/blade.nix
index 3fbb0b1a9f..19fe10e756 100644
--- a/ops/nixos/lib/blade.nix
+++ b/ops/nixos/lib/blade.nix
@@ -99,7 +99,7 @@ in {
       ATTR{address}=="${config.my.blade.macAddress.internal}", NAME="en-int"
     '' + (lib.optionalString (config.my.blade.macAddress.storage != null) ''
       ATTR{address}=="${config.my.blade.macAddress.storage}", NAME="en-storage"
-    '' + (lib.optionalString (config.my.blade.macAddress.internet != null) ''
+    '') + (lib.optionalString (config.my.blade.macAddress.internet != null) ''
       ATTR{address}=="${config.my.blade.macAddress.internet}", NAME="en-internet"
     '');