diff --git a/ops/nixos/lib/blade-router.nix b/ops/nixos/lib/blade-router.nix
index eef6a0238e..2d481ffc03 100644
--- a/ops/nixos/lib/blade-router.nix
+++ b/ops/nixos/lib/blade-router.nix
@@ -12,13 +12,15 @@ let
     NAME=$2
     TYPE=$1
 
+    BIRDC=${pkgs.bird2}/bin/birdc
+
     case $ENDSTATE in
-        "MASTER") birdc enable export4
-                  birdc enable export6
+        "MASTER") $BIRDC enable export4
+                  $BIRDC enable export6
                   exit 0
                   ;;
-        *)        birdc disable export4
-                  birdc disable export6
+        *)        $BIRDC disable export4
+                  $BIRDC disable export6
                   exit 0
                   ;;
     esac