diff --git a/examples/cpp/job_shop_cp.cc b/examples/cpp/job_shop_cp.cc
index cfa05080aa..5c3acef9ff 100644
--- a/examples/cpp/job_shop_cp.cc
+++ b/examples/cpp/job_shop_cp.cc
@@ -12,6 +12,8 @@
 // limitations under the License.
 
 #include <iomanip>
+#include <numeric> // std::iota
+
 #include "ortools/base/logging.h"
 #include "ortools/constraint_solver/constraint_solver.h"