diff --git a/common/http_common.cc b/common/http_common.cc
index 5f234b0..c8bac47 100644
--- a/common/http_common.cc
+++ b/common/http_common.cc
@@ -21,6 +21,7 @@
 #include <cstdlib>
 
 #include <base/macros.h>
+#include <base/stl_util.h>
 
 namespace chromeos_update_engine {
 
@@ -56,7 +57,7 @@
 
   bool is_found = false;
   size_t i;
-  for (i = 0; i < arraysize(http_response_table); i++)
+  for (i = 0; i < base::size(http_response_table); i++)
     if ((is_found = (http_response_table[i].code == code)))
       break;
 
@@ -77,7 +78,7 @@
 
   bool is_found = false;
   size_t i;
-  for (i = 0; i < arraysize(http_content_type_table); i++)
+  for (i = 0; i < base::size(http_content_type_table); i++)
     if ((is_found = (http_content_type_table[i].type == type)))
       break;