diff --git a/ch4/8.md b/ch4/8.md
index ea0c9f1..f2ef7ac 100644
--- a/ch4/8.md
+++ b/ch4/8.md
@@ -10,3 +10,7 @@ For KNN with K=1, the training error rate is 0% because for any training
 observation, its nearest neighbor will be the response itself. So, KNN has a
 test error rate of 36%. I would choose logistic regression because of its lower
 test error rate of 30%.
+
+<!-- I'm not sure that this is correct. I believe that KNN where K = 1 looks at the single
+ closest neighbor, not the example itself. Please correct me if I am wrong! -->
+