diff --git a/handler_impl.hpp b/handler_impl.hpp
index f1ea491..677efa2 100644
--- a/handler_impl.hpp
+++ b/handler_impl.hpp
@@ -30,6 +30,7 @@
     void psuResetDelay(std::uint32_t delay) const override;
     void psuResetOnShutdown() const override;
     std::string getEntityName(std::uint8_t id, std::uint8_t instance) override;
+    uint32_t getFlashSize() override;
     std::string getMachineName() override;
     void buildI2cPcieMapping() override;
     size_t getI2cPcieMappingSize() const override;