diff --git a/challenges/01-front-end-development-certification/basic-javascript.json b/challenges/01-front-end-development-certification/basic-javascript.json
index cfbe663662..d3e05bb9cc 100644
--- a/challenges/01-front-end-development-certification/basic-javascript.json
+++ b/challenges/01-front-end-development-certification/basic-javascript.json
@@ -117,7 +117,7 @@
         "var b = 2;",
         "",
         "// Only change code below this line",
-        " "
+        ""
       ],
       "tail": [
         "(function(a,b){return \"a = \" + a + \", b = \" + b;})(a,b);"