diff --git a/flash-ipmi.cpp b/flash-ipmi.cpp
index c4f2aec..daaab5e 100644
--- a/flash-ipmi.cpp
+++ b/flash-ipmi.cpp
@@ -49,3 +49,9 @@
     /* TODO: implement. */
     return false;
 }
+
+bool FlashUpdate::startHash(uint32_t length)
+{
+    /* TODO: implement. */
+    return false;
+}