diff --git a/lights.js b/lights.js
index 01808ff..78990a2 100644
--- a/lights.js
+++ b/lights.js
@@ -47,7 +47,7 @@ let functions = {
   subtract: (index, args, prev) => { return prev - args; }
 }
 
-export functions;
+export const functions;
 
 function tick_pattern() {
   // do the parsing stuff here