diff --git a/include/engine/guidance/assemble_route.hpp b/include/engine/guidance/assemble_route.hpp
index 7d71d4623..10fca2e42 100644
--- a/include/engine/guidance/assemble_route.hpp
+++ b/include/engine/guidance/assemble_route.hpp
@@ -5,7 +5,7 @@
 #include "engine/guidance/route.hpp"
 
 #include <vector>
-#include <algorithm>
+#include <numeric>
 
 namespace osrm
 {