diff --git a/bios_setting.hpp b/bios_setting.hpp
index 7445a7a..ced9dd8 100644
--- a/bios_setting.hpp
+++ b/bios_setting.hpp
@@ -33,6 +33,9 @@
 Resp readBiosSetting(
     std::span<const uint8_t> data, HandlerInterface* handler,
     const std::string& biosSettingPath = "/run/oem_bios_setting");
+Resp writeBiosSetting(
+    std::span<const uint8_t> data, HandlerInterface* handler,
+    const std::string& biosSettingPath = "/run/oem_bios_setting");
 
 } // namespace ipmi
 } // namespace google