diff --git a/pkgs/applications/science/logic/lean4/default.nix b/pkgs/applications/science/logic/lean4/default.nix
index 0f3d9c99ba88..14de8b42f576 100644
--- a/pkgs/applications/science/logic/lean4/default.nix
+++ b/pkgs/applications/science/logic/lean4/default.nix
@@ -46,6 +46,7 @@ stdenv.mkDerivation rec {
 
   cmakeFlags = [
     "-DUSE_GITHASH=OFF"
+    "-DINSTALL_LICENSE=OFF"
   ];
 
   # Work around https://github.com/NixOS/nixpkgs/issues/166205.