diff --git a/cmd/buildlet/stage0/stage0.go b/cmd/buildlet/stage0/stage0.go
index 3a50b67..f2d1572 100644
--- a/cmd/buildlet/stage0/stage0.go
+++ b/cmd/buildlet/stage0/stage0.go
@@ -173,7 +173,7 @@
 		cmd.Args = append(cmd.Args, reverseHostTypeArgs(buildEnv)...)
 	case "host-linux-ppc64-osu":
 		cmd.Args = append(cmd.Args, reverseHostTypeArgs(buildEnv)...)
-	case "host-linux-amd64-wsl":
+	case "host-linux-amd64-wsl", "host-linux-riscv64-unmatched":
 		cmd.Args = append(cmd.Args, reverseHostTypeArgs(buildEnv)...)
 	}
 	switch osArch {