diff --git a/challenges/02-javascript-algorithms-and-data-structures/functional-programming.json b/challenges/02-javascript-algorithms-and-data-structures/functional-programming.json
index bf2b173c47..35466bb918 100644
--- a/challenges/02-javascript-algorithms-and-data-structures/functional-programming.json
+++ b/challenges/02-javascript-algorithms-and-data-structures/functional-programming.json
@@ -289,7 +289,7 @@
       ],
       "tests": [
           "assert(fixedValue === 4, 'message: Your function <code>incrementer</code> should not change the value of <code>fixedValue</code>.');",
-          "assert(code.match(/function\\s+?incrementer\\(.+?\\)/g), 'message: Your <code>incrementer</code> function should take a parameter.');",
+          "assert(code.match(/function\\s+?incrementer\\s*?\\(.+?\\)/g), 'message: Your <code>incrementer</code> function should take a parameter.');",
           "assert(newValue === 5, 'message: Your <code>incrementer</code> function should return a value that is one larger than the <code>fixedValue</code> value.');"
       ],
       "solutions": [],