diff --git a/pkgs/tools/package-management/harmonia/default.nix b/pkgs/tools/package-management/harmonia/default.nix
index 9c472f080b15..9830570a07fd 100644
--- a/pkgs/tools/package-management/harmonia/default.nix
+++ b/pkgs/tools/package-management/harmonia/default.nix
@@ -5,6 +5,7 @@
 , nixVersions
 , pkg-config
 , rustPlatform
+, stdenv
 , nix-update-script
 , nixosTests
 }:
@@ -32,6 +33,11 @@ rustPlatform.buildRustPackage rec {
     nixVersions.nix_2_19
   ];
 
+  # Workaround for https://github.com/NixOS/nixpkgs/issues/166205
+  env = lib.optionalAttrs stdenv.cc.isClang {
+    NIX_LDFLAGS = "-l${stdenv.cc.libcxx.cxxabi.libName}";
+  };
+
   passthru = {
     updateScript = nix-update-script {
       extraArgs = [ "--version-regex" "harmonia-v(.*)" ];