diff --git a/pkgs/by-name/af/afsctool/package.nix b/pkgs/by-name/af/afsctool/package.nix
index cb993cf2b1aa..526b11ade2fb 100644
--- a/pkgs/by-name/af/afsctool/package.nix
+++ b/pkgs/by-name/af/afsctool/package.nix
@@ -20,6 +20,10 @@ stdenv.mkDerivation rec {
     hash = "sha256-cZ0P9cygj+5GgkDRpQk7P9z8zh087fpVfrYXMRRVUAI=";
   };
 
+  cmakeFlags = [
+    (lib.cmakeFeature "CMAKE_POLICY_VERSION_MINIMUM" "3.5")
+  ];
+
   nativeBuildInputs = [
     pkg-config
     cmake