diff --git a/pkgs/development/compilers/llvm/12/default.nix b/pkgs/development/compilers/llvm/12/default.nix
index db43c5bd00bd..4b71a458eb73 100644
--- a/pkgs/development/compilers/llvm/12/default.nix
+++ b/pkgs/development/compilers/llvm/12/default.nix
@@ -96,6 +96,7 @@ let
 
     lld = callPackage ./lld {
       inherit llvm_meta;
+      inherit (libraries) libunwind;
     };
 
     lldb = callPackage ./lldb {