diff --git a/pkgs/development/libraries/openh264/default.nix b/pkgs/development/libraries/openh264/default.nix
index 6e856b04ac4a..3858cb4dc2d5 100644
--- a/pkgs/development/libraries/openh264/default.nix
+++ b/pkgs/development/libraries/openh264/default.nix
@@ -13,7 +13,10 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ nasm ];
 
-  makeFlags = [ "PREFIX=${placeholder "out"}" ];
+  makeFlags = [
+    "PREFIX=${placeholder "out"}"
+    "ARCH=${stdenv.hostPlatform.linuxArch}"
+  ];
 
   meta = with lib; {
     description = "A codec library which supports H.264 encoding and decoding";