diff --git a/curriculum/challenges/english/blocks/lab-symmetric-difference/68ad9821ee41baad9cb0fd4e.md b/curriculum/challenges/english/blocks/lab-symmetric-difference/68ad9821ee41baad9cb0fd4e.md
index 950dc99290e..8fccc74bd5c 100644
--- a/curriculum/challenges/english/blocks/lab-symmetric-difference/68ad9821ee41baad9cb0fd4e.md
+++ b/curriculum/challenges/english/blocks/lab-symmetric-difference/68ad9821ee41baad9cb0fd4e.md
@@ -1,7 +1,7 @@
 ---
 id: 68ad9821ee41baad9cb0fd4e
 title: Build a Symmetric Difference Function
-challengeType: 25
+challengeType: 26
 dashedName: lab-symmetric-difference
 ---