diff --git a/lectures/10_linked_lists/iterator.cpp b/lectures/10_linked_lists/iterator.cpp
index beeeb57..afc6c58 100644
--- a/lectures/10_linked_lists/iterator.cpp
+++ b/lectures/10_linked_lists/iterator.cpp
@@ -1,6 +1,5 @@
 #include <list>
 #include <iostream>
-#include <cassert>
 
 int main(){