diff --git a/ortools/glop/initial_basis.cc b/ortools/glop/initial_basis.cc
index 587df936f4..ed4d5a65d8 100644
--- a/ortools/glop/initial_basis.cc
+++ b/ortools/glop/initial_basis.cc
@@ -14,6 +14,7 @@
 #include "ortools/glop/initial_basis.h"
 
 #include <algorithm>
+#include <cmath>
 #include <limits>
 #include <queue>
 #include <vector>
diff --git a/ortools/glop/variables_info.cc b/ortools/glop/variables_info.cc
index 9819156488..7289ddc108 100644
--- a/ortools/glop/variables_info.cc
+++ b/ortools/glop/variables_info.cc
@@ -13,6 +13,8 @@
 
 #include "ortools/glop/variables_info.h"
 
+#include <utility>
+
 namespace operations_research {
 namespace glop {