diff --git a/nixos/modules/tasks/network-interfaces.nix b/nixos/modules/tasks/network-interfaces.nix
index 09b6cec4e7ea..4b7e788bc33b 100644
--- a/nixos/modules/tasks/network-interfaces.nix
+++ b/nixos/modules/tasks/network-interfaces.nix
@@ -82,7 +82,7 @@ let
         };
 
         prefixLength = mkOption {
-          type = types.addCheck types.int (n: n >= 0 && n <= (if v == 4 then 32 else 128));
+          type = types.ints.between 0 (if v == 4 then 32 else 128);
           description = ''
             Subnet mask of the interface, specified as the number of
             bits in the prefix (`${if v == 4 then "24" else "64"}`).
@@ -99,7 +99,7 @@ let
       };
 
       prefixLength = mkOption {
-        type = types.addCheck types.int (n: n >= 0 && n <= (if v == 4 then 32 else 128));
+        type = types.ints.between 0 (if v == 4 then 32 else 128);
         description = ''
           Subnet mask of the network, specified as the number of
           bits in the prefix (`${if v == 4 then "24" else "64"}`).