diff --git a/nixos/modules/system/boot/networkd.nix b/nixos/modules/system/boot/networkd.nix
index 1de58b3d2c4a..bf254be1341b 100644
--- a/nixos/modules/system/boot/networkd.nix
+++ b/nixos/modules/system/boot/networkd.nix
@@ -384,6 +384,7 @@ let
           "AllMulticast"
           "Unmanaged"
           "RequiredForOnline"
+          "ActivationPolicy"
         ])
         (assertMacAddress "MACAddress")
         (assertByteFormat "MTUBytes")
@@ -402,6 +403,14 @@ let
           "enslaved"
           "routable"
         ]))
+        (assertValueOneOf "ActivationPolicy" ([
+          "up"
+          "always-up"
+          "manual"
+          "always-down"
+          "down"
+          "bound"
+        ]))
       ];
 
       sectionNetwork = checkUnitConfig "Network" [