diff --git a/pkgs/by-name/rc/rcu/package.nix b/pkgs/by-name/rc/rcu/package.nix
index 2f5387f51dfd..26a30f2cac53 100644
--- a/pkgs/by-name/rc/rcu/package.nix
+++ b/pkgs/by-name/rc/rcu/package.nix
@@ -149,5 +149,6 @@ python3Packages.buildPythonApplication rec {
     homepage = "http://www.davisr.me/projects/rcu/";
     license = licenses.agpl3Plus;
     maintainers = with maintainers; [ OPNA2608 ];
+    hydraPlatforms = [ ]; # requireFile used as src
   };
 }