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 9e0bb1c285..bd780e6770 100644
--- a/seed/challenges/01-front-end-development-certification/advanced-bonfires.json
+++ b/seed/challenges/01-front-end-development-certification/advanced-bonfires.json
@@ -244,7 +244,10 @@
"assert.strictEqual(permAlone('aabb'), 8, 'message: permAlone(\"aabb\")
should return 8.');",
"assert.strictEqual(permAlone('abcdefa'), 3600, 'message: permAlone(\"abcdefa\")
should return 3600.');",
"assert.strictEqual(permAlone('abfdefa'), 2640, 'message: permAlone(\"abfdefa\")
should return 2640.');",
- "assert.strictEqual(permAlone('zzzzzzzz'), 0, 'message: permAlone(\"zzzzzzzz\")
should return 0.');"
+ "assert.strictEqual(permAlone('zzzzzzzz'), 0, 'message: permAlone(\"zzzzzzzz\")
should return 0.');",
+ "assert.strictEqual(permAlone('a'), 1, 'message: permAlone(\"a\")
should return 1.');",
+ "assert.strictEqual(permAlone('aaab'), 0, 'message: permAlone(\"aaab\")
should return 0.');",
+ "assert.strictEqual(permAlone('aaabb'), 12, 'message: permAlone(\"aaabb\")
should return 12.');"
],
"type": "bonfire",
"MDNlinks": [