diff --git a/mace/benchmark/statistics.cc b/mace/benchmark/statistics.cc
index 7329c247854679f3dbc12620e75f0b7c02503a54..7909a598b10ff29f6fbea7896deaabd90eca6334 100644
--- a/mace/benchmark/statistics.cc
+++ b/mace/benchmark/statistics.cc
@@ -13,6 +13,7 @@
 // limitations under the License.
 
 #include <algorithm>
+#include <numeric>
 #include <functional>
 #include <set>