diff --git a/nix/hercules-ci.nix b/nix/hercules-ci.nix
index ce67ea974..17c06f816 100644
--- a/nix/hercules-ci.nix
+++ b/nix/hercules-ci.nix
@@ -17,5 +17,5 @@
     };
   };
 
-  herculesCI.ciSystems = [ "x86_64-linux" ];
+  herculesCI.ciSystems = [ "x86_64-linux" "x86_64-darwin" ];
 }