diff --git a/pkg/merge_k_sorted_lists/main.go b/pkg/merge_k_sorted_lists/main.go
index c24be27..61d6d77 100644
--- a/pkg/merge_k_sorted_lists/main.go
+++ b/pkg/merge_k_sorted_lists/main.go
@@ -38,7 +38,7 @@ func (l ListNodeHeap) Swap(i int, j int) {
 	l[i], l[j] = l[j], l[i]
 }
 
-func mergeKLists(lists []*ListNode) *ListNode {
+func MergeKLists(lists []*ListNode) *ListNode {
 	hp := ListNodeHeap(lists)
 	heap.Init(&hp)