diff --git a/test/test_utilities.hpp b/test/test_utilities.hpp
index d28ad4d6..b8bf3ddf 100644
--- a/test/test_utilities.hpp
+++ b/test/test_utilities.hpp
@@ -19,6 +19,7 @@
 #include <string>
 #include <fstream>
 #include <sstream>
+#include <iterator>
 
 #include "utilities/utilities.hpp"