diff --git a/pkgs/build-support/bintools-wrapper/default.nix b/pkgs/build-support/bintools-wrapper/default.nix
index 4122af898de..142f5255caa 100644
--- a/pkgs/build-support/bintools-wrapper/default.nix
+++ b/pkgs/build-support/bintools-wrapper/default.nix
@@ -187,6 +187,7 @@ stdenv.mkDerivation {
       else if targetPlatform.isPower then if targetPlatform.isBigEndian then "ppc" else "lppc"
       else if targetPlatform.isSparc then "sparc"
       else if targetPlatform.isAvr then "avr"
+      else if targetPlatform.isAlpha then "alpha"
       else throw "unknown emulation for platform: " + targetPlatform.config;
     in targetPlatform.platform.bfdEmulation or (fmt + sep + arch);