diff --git a/flash-ipmi.hpp b/flash-ipmi.hpp
index baf4c7f..561d6c8 100644
--- a/flash-ipmi.hpp
+++ b/flash-ipmi.hpp
@@ -129,6 +129,13 @@
      * Called to indicate the host is done sending the hash bytes.
      */
     virtual bool hashFinish() = 0;
+
+    /**
+     * Kick off the flash image verification process.
+     *
+     * @return true if it was started succesfully.
+     */
+    virtual bool startDataVerification() = 0;
 };
 
 class FlashUpdate : public UpdateInterface
@@ -149,6 +156,8 @@
     bool hashData(uint32_t offset, const std::vector<uint8_t>& bytes) override;
     bool hashFinish() override;
 
+    bool startDataVerification() override;
+
   private:
     /**
      * Tries to close out and delete anything staged.