diff --git a/js/soundConstants.ts b/js/soundConstants.ts
index d4cf51e4..ce5f2fb4 100644
--- a/js/soundConstants.ts
+++ b/js/soundConstants.ts
@@ -1,7 +1,5 @@
 // Copyright 2019-2021, University of Colorado Boulder
 
-// @ts-nocheck
-
 /**
  * a singleton instance that contains constants shared amongst the sound generation code modules
  *