diff --git a/default.nix b/default.nix
index 0cf9b07f..d038df2a 100644
--- a/default.nix
+++ b/default.nix
@@ -27,5 +27,6 @@ pkgs.stdenv.mkDerivation rec {
 
     buildInputs = env ++ dependencies;
 
+    LIBCLANG_PATH="${pkgs.llvmPackages.libclang}/lib";
 }