diff --git a/modules/congestion_controller/send_side_congestion_controller.cc b/modules/congestion_controller/send_side_congestion_controller.cc
index bb959f3..4a17933 100644
--- a/modules/congestion_controller/send_side_congestion_controller.cc
+++ b/modules/congestion_controller/send_side_congestion_controller.cc
@@ -12,6 +12,7 @@
 
 #include <algorithm>
 #include <cstdio>
+#include <iterator>
 #include <memory>
 #include <vector>