diff --git a/package.nix b/package.nix
index 3b8b8984..59b27906 100644
--- a/package.nix
+++ b/package.nix
@@ -32,6 +32,7 @@ rustPlatform.buildRustPackage rec {
   NIX_LDFLAGS = lib.optionals (stdenv.hostPlatform.isWindows && stdenv.hostPlatform.isi686) [
     "-L${windows.mcfgthreads}/lib"
     "-lmcfgthread"
+    "-lunwind"
   ];
 
   # unit tests only