diff --git a/seed/challenges/01-front-end-development-certification/advanced-bonfires.json b/seed/challenges/01-front-end-development-certification/advanced-bonfires.json
index d79b88d1c5..a94323c851 100644
--- a/seed/challenges/01-front-end-development-certification/advanced-bonfires.json
+++ b/seed/challenges/01-front-end-development-certification/advanced-bonfires.json
@@ -281,8 +281,8 @@
         "Remember to use <a href='//github.com/FreeCodeCamp/freecodecamp/wiki/How-to-get-help-when-you-get-stuck' target='_blank'>Read-Search-Ask</a> if you get stuck. Try to pair program. Write your own code."
       ],
       "challengeSeed": [
-        "function friendly(str) {",
-        "  return str;",
+        "function friendly(arr) {",
+        "  return arr;",
         "}",
         "",
         "friendly(['2016-07-01', '2016-07-04']);"