diff --git a/DynamicTablesPkg/Include/ArmNameSpaceObjects.h b/DynamicTablesPkg/Include/ArmNameSpaceObjects.h
index 2adaa78808..73139eb327 100644
--- a/DynamicTablesPkg/Include/ArmNameSpaceObjects.h
+++ b/DynamicTablesPkg/Include/ArmNameSpaceObjects.h
@@ -1,6 +1,6 @@
 /** @file
 
-  Copyright (c) 2017 - 2018, ARM Limited. All rights reserved.
+  Copyright (c) 2017 - 2019, ARM Limited. All rights reserved.
 
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
@@ -166,9 +166,6 @@ typedef struct CmArmGicCInfo {
     GIC Distributor information for the Platform.
 */
 typedef struct CmArmGicDInfo {
-  /// The GIC Distributor ID.
-  UINT32  GicId;
-
   /// The Physical Base address for the GIC Distributor.
   UINT64  PhysicalBaseAddress;
 
diff --git a/DynamicTablesPkg/Library/Acpi/Arm/AcpiMadtLibArm/MadtGenerator.c b/DynamicTablesPkg/Library/Acpi/Arm/AcpiMadtLibArm/MadtGenerator.c
index 1ee0b9e006..6b89c3f65d 100644
--- a/DynamicTablesPkg/Library/Acpi/Arm/AcpiMadtLibArm/MadtGenerator.c
+++ b/DynamicTablesPkg/Library/Acpi/Arm/AcpiMadtLibArm/MadtGenerator.c
@@ -192,7 +192,9 @@ AddGICD (
   // UINT16 Reserved
   Gicd->Reserved1 = EFI_ACPI_RESERVED_WORD;
   // UINT32 Identifier
-  Gicd->GicId = GicDInfo->GicId;
+  // One, and only one, GIC distributor structure must be present
+  // in the MADT for an ARM based system
+  Gicd->GicId = 0;
   // UINT64 PhysicalBaseAddress
   Gicd->PhysicalBaseAddress = GicDInfo->PhysicalBaseAddress;
   // UINT32 VectorBase