diff --git a/DynamicTablesPkg/Include/ArmNameSpaceObjects.h b/DynamicTablesPkg/Include/ArmNameSpaceObjects.h
index 93cb6949f0..2adaa78808 100644
--- a/DynamicTablesPkg/Include/ArmNameSpaceObjects.h
+++ b/DynamicTablesPkg/Include/ArmNameSpaceObjects.h
@@ -52,7 +52,7 @@ typedef enum ArmObjectID {
   EArmObjSmmuV3,                      ///< 22 - SMMUv3
   EArmObjPmcg,                        ///< 23 - PMCG
   EArmObjGicItsIdentifierArray,       ///< 24 - GIC ITS Identifier Array
-  EArmObjIdMapping,                   ///< 25 - ID Mapping
+  EArmObjIdMappingArray,              ///< 25 - ID Mapping Array
   EArmObjSmmuInterruptArray,          ///< 26 - SMMU Interrupt Array
   EArmObjMax
 } EARM_OBJECT_ID;
diff --git a/DynamicTablesPkg/Library/Acpi/Arm/AcpiIortLibArm/IortGenerator.c b/DynamicTablesPkg/Library/Acpi/Arm/AcpiIortLibArm/IortGenerator.c
index a3ee60664e..b53c4bb477 100644
--- a/DynamicTablesPkg/Library/Acpi/Arm/AcpiIortLibArm/IortGenerator.c
+++ b/DynamicTablesPkg/Library/Acpi/Arm/AcpiIortLibArm/IortGenerator.c
@@ -44,7 +44,7 @@ Requirements:
   - EArmObjSmmuV3
   - EArmObjPmcg
   - EArmObjGicItsIdentifierArray
-  - EArmObjIdMapping
+  - EArmObjIdMappingArray
   - EArmObjGicItsIdentifierArray
 */
 
@@ -116,7 +116,7 @@ GET_OBJECT_LIST (
 */
 GET_OBJECT_LIST (
   EObjNameSpaceArm,
-  EArmObjIdMapping,
+  EArmObjIdMappingArray,
   CM_ARM_ID_MAPPING
   );
 
@@ -653,7 +653,7 @@ AddIdMappingArray (
   Generator = (ACPI_IORT_GENERATOR*)This;
 
   // Get the Id Mapping Array
-  Status = GetEArmObjIdMapping (
+  Status = GetEArmObjIdMappingArray (
              CfgMgrProtocol,
              IdMappingToken,
              &IdMappings,