diff --git a/pkgs/development/compilers/dotnet/default.nix b/pkgs/development/compilers/dotnet/default.nix
index aa29ab80ac89..c2cb6eb37823 100644
--- a/pkgs/development/compilers/dotnet/default.nix
+++ b/pkgs/development/compilers/dotnet/default.nix
@@ -19,6 +19,8 @@ let
     "aarch64-linux" = "linux-arm64";
     "x86_64-darwin" = "osx-x64";
     "aarch64-darwin" = "osx-arm64";
+    "x86_64-windows" = "win-x64";
+    "i686-windows" = "win-x86";
   };
 
   # Convert a "stdenv.hostPlatform.system" to a dotnet RID