diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.c b/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.c
index 6fde3b2c7a..5adaa9745f 100644
--- a/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.c
+++ b/MdeModulePkg/Universal/Console/TerminalDxe/Terminal.c
@@ -806,7 +806,7 @@ TerminalDriverBindingStart (
     Status = TerminalDevice->SerialIo->SetAttributes (
                                         TerminalDevice->SerialIo,
                                         Mode->BaudRate,
-                                        Mode->ReceiveFifoDepth,
+                                        0, // the device's default FIFO depth
                                         (UINT32) SerialInTimeOut,
                                         (EFI_PARITY_TYPE) (Mode->Parity),
                                         (UINT8) Mode->DataBits,
diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c
index 3be877b466..2215df6c12 100644
--- a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c
+++ b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c
@@ -547,7 +547,7 @@ TerminalConInTimerHandler (
     Status = SerialIo->SetAttributes (
                         SerialIo,
                         Mode->BaudRate,
-                        Mode->ReceiveFifoDepth,
+                        0, // the device's default FIFO depth
                         (UINT32) SerialInTimeOut,
                         (EFI_PARITY_TYPE) (Mode->Parity),
                         (UINT8) Mode->DataBits,