Index: src/target/mod.rs
--- src/target/mod.rs.orig
+++ src/target/mod.rs
@@ -137,7 +137,7 @@ impl Arch {
             Arch::Powerpc | Arch::Powerpc64Le | Arch::Powerpc64 => "powerpc",
             Arch::X86 => "i386",
             Arch::X86_64 => "amd64",
-            Arch::Riscv32 | Arch::Riscv64 => "riscv",
+            Arch::Riscv32 | Arch::Riscv64 => "riscv64",
             Arch::Mips64el | Arch::Mips64 | Arch::Mipsel | Arch::Mips => "mips",
             // sparc64 is unsupported since FreeBSD 13.0
             Arch::Sparc64 => "sparc64",
