diff --git a/pkgs/os-specific/linux/firmware/firmware-linux-nonfree/default.nix b/pkgs/os-specific/linux/firmware/firmware-linux-nonfree/default.nix
index 6d921d553384..8567dadec50d 100644
--- a/pkgs/os-specific/linux/firmware/firmware-linux-nonfree/default.nix
+++ b/pkgs/os-specific/linux/firmware/firmware-linux-nonfree/default.nix
@@ -61,6 +61,7 @@ in stdenv.mkDerivation {
     description = "Binary firmware collection packaged by Debian";
     homepage = "http://packages.debian.org/sid/firmware-linux-nonfree";
     license = stdenv.lib.licenses.unfreeRedistributable;
+    platforms = stdenv.lib.platforms.linux;
     priority = 10; # low priority so that other packages can override this big package
   };
 }