diff --git a/pkgs/tools/text/zimreader/default.nix b/pkgs/tools/text/zimreader/default.nix
index d9dcc3c0fbb..2e51e7d7f9e 100644
--- a/pkgs/tools/text/zimreader/default.nix
+++ b/pkgs/tools/text/zimreader/default.nix
@@ -39,6 +39,6 @@ in stdenv.mkDerivation rec {
     description = "A tool to serve ZIM files using HTTP";
     homepage = http://git.wikimedia.org/log/openzim;
     maintainers = with stdenv.lib.maintainers; [ robbinch ];
-    platforms = with stdenv.lib.platforms; linux;
+    platforms = [ "x86_64-linux" ];
   };
 }