diff --git a/challenges/01-front-end-development-certification/basic-bonfires.json b/challenges/01-front-end-development-certification/basic-bonfires.json
index 11560772d6..4c9dbb7c10 100644
--- a/challenges/01-front-end-development-certification/basic-bonfires.json
+++ b/challenges/01-front-end-development-certification/basic-bonfires.json
@@ -784,7 +784,7 @@
       "tests": [
         "assert(where([10, 20, 30, 40, 50], 35) === 3, 'message: <code>where([10, 20, 30, 40, 50], 35)</code> should return <code>3</code>.');",
         "assert(where([10, 20, 30, 40, 50], 30) === 2, 'message: <code>where([10, 20, 30, 40, 50], 30)</code> should return <code>2</code>.');",
-        "assert(where([40, 60], 50) === 1, 'message: <code>where([40, 60,], 50)</code> should return <code>1</code>.');",
+        "assert(where([40, 60], 50) === 1, 'message: <code>where([40, 60], 50)</code> should return <code>1</code>.');",
         "assert(where([3, 10, 5], 3) === 0, 'message: <code>where([3, 10, 5], 3)</code> should return <code>0</code>.');",
         "assert(where([5, 3, 20, 3], 5) === 2, 'message: <code>where([5, 3, 20, 3], 5)</code> should return <code>2</code>.');",
         "assert(where([2, 20, 10], 19) === 2, 'message: <code>where([2, 20, 10], 19)</code> should return <code>2</code>.');",