diff --git a/docs/how-to-setup-freecodecamp-locally.md b/docs/how-to-setup-freecodecamp-locally.md
index ab29da5746..9caae219fc 100644
--- a/docs/how-to-setup-freecodecamp-locally.md
+++ b/docs/how-to-setup-freecodecamp-locally.md
@@ -453,3 +453,5 @@ npm run seed
 # Restart the application
 npm run develop
 ```
+
+If you can't sign in, and instead, you see a banner with an error message saying that it'll be reported to freeCodeCamp, please double-check that your local port 3000 is not in use by a different program.