diff --git a/MdeModulePkg/Core/Dxe/Dispatcher/Dispatcher.c b/MdeModulePkg/Core/Dxe/Dispatcher/Dispatcher.c
index c378ca5b4c..0776cd6d24 100644
--- a/MdeModulePkg/Core/Dxe/Dispatcher/Dispatcher.c
+++ b/MdeModulePkg/Core/Dxe/Dispatcher/Dispatcher.c
@@ -736,6 +736,8 @@ FvIsBeingProcesssed (
   LIST_ENTRY                            *Link;
   KNOWN_HANDLE                          *KnownHandle;
 
+  FwVolHeader = NULL;
+
   //
   // Get the FirmwareVolumeBlock protocol on that handle
   //