diff --git a/simulator/simulator/efifeatures.h b/simulator/simulator/efifeatures.h
index c2328f510d..9ad90ff434 100644
--- a/simulator/simulator/efifeatures.h
+++ b/simulator/simulator/efifeatures.h
@@ -24,6 +24,7 @@
 
 #define EFI_SIMULATOR TRUE
 #define EFI_PROD_CODE FALSE
+#define TS_UART_DMA_MODE FALSE
 
 #define EFI_MAP_AVERAGING TRUE
 #define EFI_ALTERNATOR_CONTROL FALSE