diff --git a/libpldmresponder/bios_string_attribute.hpp b/libpldmresponder/bios_string_attribute.hpp
index 5132841..33726d5 100644
--- a/libpldmresponder/bios_string_attribute.hpp
+++ b/libpldmresponder/bios_string_attribute.hpp
@@ -84,7 +84,7 @@
         Table& attrValueEntry) override;
 
     int updateAttrVal(Table& newValue, uint16_t attrHdl, uint8_t attrType,
-                      const pldm::utils::PropertyValue& newPropVal);
+                      const pldm::utils::PropertyValue& newPropVal) override;
 
   private:
     /** @brief string field from json */