diff --git a/pkgs/development/libraries/xgboost/default.nix b/pkgs/development/libraries/xgboost/default.nix
index 37e55afc4e9f..74d263a94179 100644
--- a/pkgs/development/libraries/xgboost/default.nix
+++ b/pkgs/development/libraries/xgboost/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
                ++ lib.optional ncclSupport "-DUSE_NCCL=ON";
 
   installPhase = let
-    libname = if stdenv.isDarwin then "libxgboost.dylib" else "libxgboost.so";
+    libname = "libxgboost${stdenv.hostPlatform.extensions.sharedLibrary}";
   in ''
     mkdir -p $out
     cp -r ../include $out