diff --git a/shell/browser/extensions/electron_extension_loader.cc b/shell/browser/extensions/electron_extension_loader.cc
index 0d6a76f6a2..19bc33423a 100644
--- a/shell/browser/extensions/electron_extension_loader.cc
+++ b/shell/browser/extensions/electron_extension_loader.cc
@@ -13,6 +13,7 @@
 #include "base/functional/bind.h"
 #include "base/logging.h"
 #include "base/notimplemented.h"
+#include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/task/sequenced_task_runner.h"
 #include "base/threading/thread_restrictions.h"