diff --git a/youtokentome/cpp/utf8.h b/youtokentome/cpp/utf8.h
index 0888bb3..04bfe40 100644
--- a/youtokentome/cpp/utf8.h
+++ b/youtokentome/cpp/utf8.h
@@ -3,6 +3,7 @@
 #include <vector>
 #include <string>
 #include <cassert>
+#include <iterator>
 
 namespace vkcom {