diff --git a/education/software development/ECE1400/Chapter 17 Exercises.md b/education/software development/ECE1400/Chapter 17 Exercises.md
index 1ebd569..67adf53 100644
--- a/education/software development/ECE1400/Chapter 17 Exercises.md	
+++ b/education/software development/ECE1400/Chapter 17 Exercises.md	
@@ -72,11 +72,14 @@ struct node *insert_into_ordered_list(struct node *list, struct node *new_node)
 }
 ```
 
-In the above code, if the new item needs to be ine
+In the above code, if the new item needs to be inserted at the *end* of the list, it breaks, because `cur` is set to `NULL`, then it attempts to access `cur->value`.
 ```c
 struct node *insert_into_ordered_list(struct node *list, struct node *new_node) {
 	struct node *cur = list, *prev = NULL;
 	while (cur->value <= new_node->value) {
+		if (cur->next == NULL) {
+			break;
+		}
 		prev = cur;
 		cur = cur->next;
 	}