diff --git a/challenges/01-front-end-development-certification/advanced-bonfires.json b/challenges/01-front-end-development-certification/advanced-bonfires.json
index dbd14a90eef..7a098352be6 100644
--- a/challenges/01-front-end-development-certification/advanced-bonfires.json
+++ b/challenges/01-front-end-development-certification/advanced-bonfires.json
@@ -40,7 +40,7 @@
         "assert(telephoneCheck(\"555-555-5555\") === true, 'message: <code>telephoneCheck(\"555-555-5555\")</code> should return true.');",
         "assert(telephoneCheck(\"(555)555-5555\") === true, 'message: <code>telephoneCheck(\"(555)555-5555\")</code> should return true.');",
         "assert(telephoneCheck(\"1(555)555-5555\") === true, 'message: <code>telephoneCheck(\"1(555)555-5555\")</code> should return true.');",
-        "assert(telephoneCheck(\"1 555)555-5555\") === false, 'message: <code>telephoneCheck(\"1 555)555-555\")</code> should return false.');",
+        "assert(telephoneCheck(\"1 555)555-5555\") === false, 'message: <code>telephoneCheck(\"1 555)555-5555\")</code> should return false.');",
         "assert(telephoneCheck(\"1 555 555 5555\") === true, 'message: <code>telephoneCheck(\"1 555 555 5555\")</code> should return true.');",
         "assert(telephoneCheck(\"1 456 789 4444\") === true, 'message: <code>telephoneCheck(\"1 456 789 4444\")</code> should return true.');",
         "assert(telephoneCheck(\"123**&!!asdf#\") === false, 'message: <code>telephoneCheck(\"123**&!!asdf#\")</code> should return false.');",