diff --git a/pkgs/by-name/lp/lpcnet/package.nix b/pkgs/by-name/lp/lpcnet/package.nix
index 75865e7abb69..8fd8f58bf052 100644
--- a/pkgs/by-name/lp/lpcnet/package.nix
+++ b/pkgs/by-name/lp/lpcnet/package.nix
@@ -47,6 +47,10 @@ stdenv.mkDerivation (finalAttrs: {
     codec2
   ];
 
+  cmakeFlags = [
+    (lib.cmakeFeature "CMAKE_POLICY_VERSION_MINIMUM" "3.5")
+  ];
+
   doCheck = true;
   nativeCheckInputs = [
     # NOTE: From some reason, the tests pass without this on x86_64-linux, but