diff --git a/DuetPkg/DuetPkg.fdf b/DuetPkg/DuetPkg.fdf
index b029ef5fd8..73f9c839bb 100644
--- a/DuetPkg/DuetPkg.fdf
+++ b/DuetPkg/DuetPkg.fdf
@@ -42,6 +42,11 @@ READ_STATUS        = TRUE
 READ_LOCK_CAP      = TRUE
 READ_LOCK_STATUS   = TRUE
 
+APRIORI DXE {
+  INF  MdeModulePkg/Universal/PCD/Dxe/Pcd.inf
+  INF  PcAtChipsetPkg/8259InterruptControllerDxe/8259.inf
+}
+
 INF  MdeModulePkg/Universal/PCD/Dxe/Pcd.inf
 INF  MdeModulePkg/Universal/WatchdogTimerDxe/WatchdogTimer.inf
 INF  MdeModulePkg/Core/RuntimeDxe/RuntimeDxe.inf