diff --git a/nix/llvm/default.nix b/nix/llvm/default.nix
index a236c355..e4a2cc61 100644
--- a/nix/llvm/default.nix
+++ b/nix/llvm/default.nix
@@ -114,6 +114,7 @@ in stdenv.mkDerivation (rec {
     "-DLLVM_ENABLE_UNWIND_TABLES=OFF"
     "-DLLVM_ENABLE_THREADS=OFF"
     "-DLLVM_INCLUDE_BENCHMARKS=OFF"
+    "-DLLVM_BUILD_TOOLS=OFF"
     "-DLLVM_TARGETS_TO_BUILD=X86;ARM;RISCV"
   ] ++ optionals enableSharedLibraries [
     "-DLLVM_LINK_LLVM_DYLIB=ON"