diff --git a/src/util.js b/src/util.js
index 6b8f8f374..8e301494b 100644
--- a/src/util.js
+++ b/src/util.js
@@ -2,7 +2,7 @@
 // Common Util for frontend and backend
 //
 // DOT NOT MODIFY util.js!
-// Need to run "tsc" to compile if there are any changes.
+// Need to run "npm run tsc" to compile if there are any changes.
 //
 // Backend uses the compiled file util.js
 // Frontend uses util.ts
diff --git a/src/util.ts b/src/util.ts
index e8a2706e3..712b89b13 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -1,7 +1,7 @@
 // Common Util for frontend and backend
 //
 // DOT NOT MODIFY util.js!
-// Need to run "tsc" to compile if there are any changes.
+// Need to run "npm run tsc" to compile if there are any changes.
 //
 // Backend uses the compiled file util.js
 // Frontend uses util.ts