diff --git a/base/check_op.h b/base/check_op.h
index 0943d0cc2..c16df8705 100644
--- a/base/check_op.h
+++ b/base/check_op.h
@@ -6,6 +6,7 @@
 #define BASE_CHECK_OP_H_
 
 #include <cstddef>
+#include <cstring>
 #include <type_traits>
 
 #include "base/check.h"
diff --git a/base/debug/elf_reader.cc b/base/debug/elf_reader.cc
index aea4f3b03..1cf7bf50d 100644
--- a/base/debug/elf_reader.cc
+++ b/base/debug/elf_reader.cc
@@ -4,6 +4,7 @@
 
 #include "base/debug/elf_reader.h"
 
+#include <string.h>
 #include <arpa/inet.h>
 #include <elf.h>