diff --git a/packages/core/pattern.mjs b/packages/core/pattern.mjs
index 1e0fa8674..4c5d724fe 100644
--- a/packages/core/pattern.mjs
+++ b/packages/core/pattern.mjs
@@ -1569,13 +1569,13 @@ export const outside = register('outside', function (factor, f, pat) {
  */
 export const lastOf = register('lastOf', function (n, func, pat) {
   const pats = Array(n - 1).fill(pat);
-  
+
   // It seems we have a pattern, but with a 'compose' function, let's
   // use that
   if ('__compose' in func) {
     func = func.__compose;
   }
-  
+
   pats.push(func(pat));
   return slowcatPrime(...pats);
 });