diff --git a/PHI-CL/control.lua b/PHI-CL/control.lua
index 15be3a5..28e935a 100644
--- a/PHI-CL/control.lua
+++ b/PHI-CL/control.lua
@@ -1,4 +1,5 @@
 local cargo_landing = require('control/cargo-landing')
+local combinator = require('control/combinator')
 local lab = require('control/lab')
 local rail_support = require('control/rail-support')
 local trash = require('control/trash')
diff --git a/PHI-CL/control/combinator.lua b/PHI-CL/control/combinator.lua
new file mode 100644
index 0000000..e69de29