diff --git a/base/binaryplatforms.jl b/base/binaryplatforms.jl
index f96887d554af0..57cf568402396 100644
--- a/base/binaryplatforms.jl
+++ b/base/binaryplatforms.jl
@@ -593,6 +593,7 @@ const arch_mapping = Dict(
     "armv7l" => "arm(v7l)?", # if we just see `arm-linux-gnueabihf`, we assume it's `armv7l`
     "armv6l" => "armv6l",
     "powerpc64le" => "p(ower)?pc64le",
+    "riscv64" => "(rv64|riscv64)",
 )
 # Keep this in sync with `CPUID.ISAs_by_family`
 # These are the CPUID side of the microarchitectures targeted by GCC flags in BinaryBuilder.jl