diff --git a/pkgs/data/icons/iconpack-obsidian/default.nix b/pkgs/data/icons/iconpack-obsidian/default.nix
index efcaa1cbc53e..b033f510f0b9 100644
--- a/pkgs/data/icons/iconpack-obsidian/default.nix
+++ b/pkgs/data/icons/iconpack-obsidian/default.nix
@@ -28,7 +28,8 @@ stdenv.mkDerivation rec {
     description = "Gnome Icon Pack based upon Faenza";
     homepage = https://github.com/madmaxms/iconpack-obsidian;
     license = licenses.lgpl3;
-    platforms = platforms.all;
+    # darwin cannot deal with file names differing only in case
+    platforms = platforms.linux;
     maintainers = [ maintainers.romildo ];
   };
 }