diff --git a/nixos/modules/system/boot/networkd.nix b/nixos/modules/system/boot/networkd.nix
index 6a63808cf2e4..1b0e220bd31f 100644
--- a/nixos/modules/system/boot/networkd.nix
+++ b/nixos/modules/system/boot/networkd.nix
@@ -437,6 +437,7 @@ let
         (assertKeyIsSystemdCredential "PresharedKey")
         (assertOnlyFields [
           "PublicKey"
+          "PublicKeyFile"
           "PresharedKey"
           "PresharedKeyFile"
           "AllowedIPs"