diff --git a/internal/uvm/create.go b/internal/uvm/create.go
index cbcd4d84a1..9092e929f0 100644
--- a/internal/uvm/create.go
+++ b/internal/uvm/create.go
@@ -23,9 +23,8 @@ import (
 
 // Options are the set of options passed to Create() to create a utility vm.
 type Options struct {
-	ID                      string // Identifier for the uvm. Defaults to generated GUID.
-	Owner                   string // Specifies the owner. Defaults to executable name.
-	AdditionHCSDocumentJSON string // Optional additional JSON to merge into the HCS document prior
+	ID    string // Identifier for the uvm. Defaults to generated GUID.
+	Owner string // Specifies the owner. Defaults to executable name.
 
 	// MemorySizeInMB sets the UVM memory. If `0` will default to platform
 	// default.
@@ -105,9 +104,7 @@ func verifyCloneUvmCreateOpts(templateOpts, cloneOpts *OptionsWCOW) bool {
 	// Save the original values of the fields that we want to ignore and replace them with
 	// the same values as that of the other object. So that we can simply use `==` operator.
 	templateIDBackup := templateOpts.ID
-	templateAdditionalJsonBackup := templateOpts.AdditionHCSDocumentJSON
 	templateOpts.ID = cloneOpts.ID
-	templateOpts.AdditionHCSDocumentJSON = cloneOpts.AdditionHCSDocumentJSON
 
 	// We can't use `==` operator on structs which include slices in them. So compare the
 	// Layerfolders separately and then directly compare the Options struct.
@@ -119,7 +116,6 @@ func verifyCloneUvmCreateOpts(templateOpts, cloneOpts *OptionsWCOW) bool {
 
 	// set original values
 	templateOpts.ID = templateIDBackup
-	templateOpts.AdditionHCSDocumentJSON = templateAdditionalJsonBackup
 	return result
 }
 
diff --git a/internal/uvm/create_lcow.go b/internal/uvm/create_lcow.go
index 48f501d6db..d1ba2d3f41 100644
--- a/internal/uvm/create_lcow.go
+++ b/internal/uvm/create_lcow.go
@@ -17,7 +17,6 @@ import (
 	"github.com/Microsoft/hcsshim/internal/gcs"
 	"github.com/Microsoft/hcsshim/internal/log"
 	"github.com/Microsoft/hcsshim/internal/logfields"
-	"github.com/Microsoft/hcsshim/internal/mergemaps"
 	"github.com/Microsoft/hcsshim/internal/oc"
 	"github.com/Microsoft/hcsshim/internal/processorinfo"
 	hcsschema "github.com/Microsoft/hcsshim/internal/schema2"
@@ -377,12 +376,7 @@ func CreateLCOW(ctx context.Context, opts *OptionsLCOW) (_ *UtilityVM, err error
 		}
 	}
 
-	fullDoc, err := mergemaps.MergeJSON(doc, ([]byte)(opts.AdditionHCSDocumentJSON))
-	if err != nil {
-		return nil, fmt.Errorf("failed to merge additional JSON '%s': %s", opts.AdditionHCSDocumentJSON, err)
-	}
-
-	err = uvm.create(ctx, fullDoc)
+	err = uvm.create(ctx, doc)
 	if err != nil {
 		return nil, fmt.Errorf("error while creating the compute system: %s", err)
 	}
diff --git a/internal/uvm/create_wcow.go b/internal/uvm/create_wcow.go
index 8371d5eac2..5a873e8c50 100644
--- a/internal/uvm/create_wcow.go
+++ b/internal/uvm/create_wcow.go
@@ -11,7 +11,6 @@ import (
 	"github.com/Microsoft/hcsshim/internal/gcs"
 	"github.com/Microsoft/hcsshim/internal/log"
 	"github.com/Microsoft/hcsshim/internal/logfields"
-	"github.com/Microsoft/hcsshim/internal/mergemaps"
 	"github.com/Microsoft/hcsshim/internal/ncproxyttrpc"
 	"github.com/Microsoft/hcsshim/internal/oc"
 	"github.com/Microsoft/hcsshim/internal/processorinfo"
@@ -315,12 +314,7 @@ func CreateWCOW(ctx context.Context, opts *OptionsWCOW) (_ *UtilityVM, err error
 		uvm.IsTemplate = true
 	}
 
-	fullDoc, err := mergemaps.MergeJSON(doc, ([]byte)(opts.AdditionHCSDocumentJSON))
-	if err != nil {
-		return nil, fmt.Errorf("failed to merge additional JSON '%s': %s", opts.AdditionHCSDocumentJSON, err)
-	}
-
-	err = uvm.create(ctx, fullDoc)
+	err = uvm.create(ctx, doc)
 	if err != nil {
 		return nil, fmt.Errorf("error while creating the compute system: %s", err)
 	}