diff --git a/pkgs/servers/web-apps/5etools/default.nix b/pkgs/servers/web-apps/5etools/default.nix
index 03335be5ae8..856384aa173 100644
--- a/pkgs/servers/web-apps/5etools/default.nix
+++ b/pkgs/servers/web-apps/5etools/default.nix
@@ -15,5 +15,6 @@ fetchFromGitHub rec {
     changelog = "https://github.com/5etools-mirror-1/5etools-mirror-1.github.io/releases/tag/v${version}";
     license = [ licenses.mit ];
     maintainers = with maintainers; [ urandom ];
+    hydraPlatforms = []; # src tarball is 4.7G, unpackeed 4.8G, exceeds hydras output limit
   };
 }