diff --git a/Code/Framework/AzToolsFramework/Tests/Prefab/SpawnableRemoveEditorInfoTestFixture.cpp b/Code/Framework/AzToolsFramework/Tests/Prefab/SpawnableRemoveEditorInfoTestFixture.cpp
index b8ce3c7c42..0d75227e38 100644
--- a/Code/Framework/AzToolsFramework/Tests/Prefab/SpawnableRemoveEditorInfoTestFixture.cpp
+++ b/Code/Framework/AzToolsFramework/Tests/Prefab/SpawnableRemoveEditorInfoTestFixture.cpp
@@ -9,6 +9,7 @@
 #include <Prefab/SpawnableRemoveEditorInfoTestFixture.h>
 
 #include <AzToolsFramework/Prefab/PrefabDomUtils.h>
+#include <AzToolsFramework/Prefab/Spawnable/PrefabDocument.h>
 #include <AzToolsFramework/ToolsComponents/EditorOnlyEntityComponent.h>
 #include <AzToolsFramework/ToolsComponents/EditorOnlyEntityComponentBus.h>
 #include <AzToolsFramework/ToolsComponents/TransformComponent.h>
@@ -201,15 +202,14 @@ namespace UnitTest
     {
         ConvertSourceEntitiesToPrefab();
 
+        AzToolsFramework::Prefab::PrefabConversionUtils::PrefabDocument prefab("Test");
+        prefab.SetPrefabDom(m_prefabDom);
         const bool actualResult =
-            m_editorInfoRemover.RemoveEditorInfo(m_prefabDom, m_serializeContext, m_prefabProcessorContext).IsSuccess();
+            m_editorInfoRemover.RemoveEditorInfo(prefab, m_serializeContext, m_prefabProcessorContext).IsSuccess();
 
         EXPECT_EQ(expectedResult, actualResult);
 
-        AZStd::unique_ptr<Instance> convertedInstance(aznew Instance());
-        ASSERT_TRUE(AzToolsFramework::Prefab::PrefabDomUtils::LoadInstanceFromPrefabDom(*convertedInstance, m_prefabDom));
-
-        convertedInstance->DetachAllEntitiesInHierarchy(
+        prefab.GetInstance().DetachAllEntitiesInHierarchy(
             [this](AZStd::unique_ptr<AZ::Entity> entity)
             {
                 m_runtimeEntities.emplace_back(entity.release());