diff --git a/pkgs/tools/text/zimwriterfs/default.nix b/pkgs/tools/text/zimwriterfs/default.nix
index a5eeb423ff2..c9a6b7b3d79 100644
--- a/pkgs/tools/text/zimwriterfs/default.nix
+++ b/pkgs/tools/text/zimwriterfs/default.nix
@@ -38,6 +38,6 @@ stdenv.mkDerivation rec {
     homepage = http://git.wikimedia.org/log/openzim;
     maintainers = with stdenv.lib.maintainers; [ robbinch ];
     license = stdenv.lib.licenses.gpl3;
-    platforms = with stdenv.lib.platforms; linux;
+    platforms = with stdenv.lib.platforms; [ linux ];
   };
 }