diff --git a/browser/ephemeral_storage/brave_ephemeral_storage_service_delegate.h b/browser/ephemeral_storage/brave_ephemeral_storage_service_delegate.h
index 7f54445eef2b..4e5a39364deb 100644
--- a/browser/ephemeral_storage/brave_ephemeral_storage_service_delegate.h
+++ b/browser/ephemeral_storage/brave_ephemeral_storage_service_delegate.h
@@ -13,6 +13,10 @@
 #include "brave/components/ephemeral_storage/ephemeral_storage_service_delegate.h"
 #include "components/content_settings/core/browser/cookie_settings.h"
 
+namespace content {
+class BrowserContext;
+}
+
 class HostContentSettingsMap;
 
 namespace ephemeral_storage {