diff --git a/src/Resources/Resources/ChangeLog.md b/src/Resources/Resources/ChangeLog.md
index a8b2bfa459ca..8d57df853447 100644
--- a/src/Resources/Resources/ChangeLog.md
+++ b/src/Resources/Resources/ChangeLog.md
@@ -19,6 +19,7 @@
 -->
 
 ## Upcoming Release
+* Fixed NullReferenceException issue in `New-AzRoleAssignment` [#19793]
 
 ## Version 6.3.0
 * Removed unused reference to resource identifier in role assignment create cmdlet
diff --git a/src/Resources/Resources/RoleAssignments/NewAzureRoleAssignmentCommand.cs b/src/Resources/Resources/RoleAssignments/NewAzureRoleAssignmentCommand.cs
index 7ea53e363cd7..1a2c032fa0f2 100644
--- a/src/Resources/Resources/RoleAssignments/NewAzureRoleAssignmentCommand.cs
+++ b/src/Resources/Resources/RoleAssignments/NewAzureRoleAssignmentCommand.cs
@@ -318,6 +318,13 @@ public override void ExecuteCmdlet()
                     Id = ObjectId,
                     ObjectType = ObjectType,
                 },
+                ResourceIdentifier = new ResourceIdentifier() {
+                    ParentResource = ParentResource,
+                    ResourceGroupName = ResourceGroupName,
+                    ResourceName = ResourceName,
+                    ResourceType = ResourceType,
+                    Subscription = DefaultProfile.DefaultContext.Subscription.Id,
+                },
                 CanDelegate = AllowDelegation.IsPresent ? true : false,
                 Description = Description,
                 Condition = Condition,