diff --git a/cartographer/io/points_batch.h b/cartographer/io/points_batch.h
index c3eea17..7f6d0b8 100644
--- a/cartographer/io/points_batch.h
+++ b/cartographer/io/points_batch.h
@@ -17,6 +17,7 @@
 #ifndef CARTOGRAPHER_IO_POINTS_BATCH_H_
 #define CARTOGRAPHER_IO_POINTS_BATCH_H_
 
+#include <array>
 #include <cstdint>
 #include <vector>
 
diff --git a/cartographer/mapping_3d/hybrid_grid.h b/cartographer/mapping_3d/hybrid_grid.h
index 12a55bc..e2aef39 100644
--- a/cartographer/mapping_3d/hybrid_grid.h
+++ b/cartographer/mapping_3d/hybrid_grid.h
@@ -17,6 +17,7 @@
 #ifndef CARTOGRAPHER_MAPPING_3D_HYBRID_GRID_H_
 #define CARTOGRAPHER_MAPPING_3D_HYBRID_GRID_H_
 
+#include <array>
 #include <cmath>
 #include <limits>
 #include <utility>
diff --git a/cartographer/sensor/collator_test.cc b/cartographer/sensor/collator_test.cc
index 5d07aa9..5ebb55a 100644
--- a/cartographer/sensor/collator_test.cc
+++ b/cartographer/sensor/collator_test.cc
@@ -16,6 +16,7 @@
 
 #include "cartographer/sensor/collator.h"
 
+#include <array>
 #include <memory>
 
 #include "cartographer/common/lua_parameter_dictionary_test_helpers.h"