diff --git a/lib/systems/platforms.nix b/lib/systems/platforms.nix
index a01f167a02b..b3a4f9fc13c 100644
--- a/lib/systems/platforms.nix
+++ b/lib/systems/platforms.nix
@@ -459,7 +459,6 @@ rec {
   riscv-multiplatform = bits: {
     name = "riscv-multiplatform";
     kernelArch = "riscv";
-    bfdEmulation = "elf${bits}lriscv";
     kernelTarget = "vmlinux";
     kernelAutoModules = true;
     kernelBaseConfig = "defconfig";
diff --git a/pkgs/build-support/bintools-wrapper/default.nix b/pkgs/build-support/bintools-wrapper/default.nix
index 3b1b8ff570a..6da0e58436d 100644
--- a/pkgs/build-support/bintools-wrapper/default.nix
+++ b/pkgs/build-support/bintools-wrapper/default.nix
@@ -167,7 +167,7 @@ stdenv.mkDerivation {
       else if targetPlatform.isWindows then "pe"
       else "elf" + toString targetPlatform.parsed.cpu.bits;
     endianPrefix = if targetPlatform.isBigEndian then "big" else "little";
-    sep = optionalString (!targetPlatform.isMips && !targetPlatform.isPower) "-";
+    sep = optionalString (!targetPlatform.isMips && !targetPlatform.isPower && !targetPlatform.isRiscV) "-";
     arch =
       /**/ if targetPlatform.isAarch64 then endianPrefix + "aarch64"
       else if targetPlatform.isAarch32     then endianPrefix + "arm"
@@ -187,6 +187,7 @@ stdenv.mkDerivation {
       else if targetPlatform.isAlpha then "alpha"
       else if targetPlatform.isVc4 then "vc4"
       else if targetPlatform.isOr1k then "or1k"
+      else if targetPlatform.isRiscV then "lriscv"
       else throw "unknown emulation for platform: ${targetPlatform.config}";
     in if targetPlatform.useLLVM or false then ""
        else targetPlatform.platform.bfdEmulation or (fmt + sep + arch);