diff --git a/Tests/AssemblerLib/TestSerialExecutor.cpp b/Tests/AssemblerLib/TestSerialExecutor.cpp
index 8823ecef7bdf4af88ac83e0fb3d3ed387af1c01e..d074ee12d0ca94971b669a52001c62c7d636d134 100644
--- a/Tests/AssemblerLib/TestSerialExecutor.cpp
+++ b/Tests/AssemblerLib/TestSerialExecutor.cpp
@@ -12,6 +12,7 @@
 #include <algorithm>
 #include <vector>
 #include <functional>
+#include <numeric>
 #include "AssemblerLib/SerialExecutor.h"
 
 template <typename Container>