diff --git a/mmc/item_updater_mmc.hpp b/mmc/item_updater_mmc.hpp
index fc2b6a4..db80dbf 100644
--- a/mmc/item_updater_mmc.hpp
+++ b/mmc/item_updater_mmc.hpp
@@ -91,7 +91,7 @@
         const std::string& filePath) override;
 
     /** @brief Validate if image is valid or not */
-    bool validateImage(const std::string& path);
+    bool validateImage(const std::string& path) override;
 
     /** @brief Host factory reset - clears PNOR partitions for each
      * Activation D-Bus object */