diff --git a/pkgs/development/compilers/dotnet/default.nix b/pkgs/development/compilers/dotnet/default.nix
index 3b38f31d8e4e..a0b9455e0af5 100644
--- a/pkgs/development/compilers/dotnet/default.nix
+++ b/pkgs/development/compilers/dotnet/default.nix
@@ -39,6 +39,7 @@ makeScopeWithSplicing' {
       runtimeIdentifierMap = {
         "x86_64-linux" = "linux-x64";
         "aarch64-linux" = "linux-arm64";
+        "riscv64-linux" = "linux-riscv64";
         "aarch64-darwin" = "osx-arm64";
         "x86_64-windows" = "win-x64";
         "i686-windows" = "win-x86";