diff --git a/tools/hscollider/main.cpp b/tools/hscollider/main.cpp
index ec7cd6be..18d7a016 100644
--- a/tools/hscollider/main.cpp
+++ b/tools/hscollider/main.cpp
@@ -61,6 +61,7 @@
 #include <cstdlib>
 #include <fstream>
 #include <iostream>
+#include <iterator>
 #include <mutex>
 #include <queue>
 #include <string>