diff --git a/packages/core/pattern.mjs b/packages/core/pattern.mjs
index 1d737df4..6396d97b 100644
--- a/packages/core/pattern.mjs
+++ b/packages/core/pattern.mjs
@@ -2321,6 +2321,13 @@ export const splice = register(
   false, // turns off auto-patternification
 );
 
+// this function will be redefined in repl.mjs to use the correct cps value.
+// It is still here to work in cases where repl.mjs is not used
+
+export const { loopAt, loopat } = register(['loopAt', 'loopat'], function (factor, pat) {
+  return _loopAt(factor, pat, 1);
+});
+
 /**
  * Makes the sample fit the given number of cycles and cps value, by
  * changing the speed. Please note that at some point cps will be