diff --git a/pkg/compiler/transformers/k8s/node.go b/pkg/compiler/transformers/k8s/node.go
index aece64a9a..7331cb058 100644
--- a/pkg/compiler/transformers/k8s/node.go
+++ b/pkg/compiler/transformers/k8s/node.go
@@ -210,7 +210,7 @@ func buildNodes(nodes []*core.Node, tasks []*core.CompiledTask, errs errors.Comp
 	return res, !errs.HasErrors()
 }
 
-func buildTasks(tasks []*core.CompiledTask, errs errors.CompileErrors) map[common.TaskIDKey]*v1alpha1.TaskSpec {
+func BuildTasks(tasks []*core.CompiledTask, errs errors.CompileErrors) map[common.TaskIDKey]*v1alpha1.TaskSpec {
 	res := make(map[common.TaskIDKey]*v1alpha1.TaskSpec, len(tasks))
 	for _, flyteTask := range tasks {
 		if flyteTask == nil {
diff --git a/pkg/compiler/transformers/k8s/node_test.go b/pkg/compiler/transformers/k8s/node_test.go
index a5b7ef275..d2eefa472 100644
--- a/pkg/compiler/transformers/k8s/node_test.go
+++ b/pkg/compiler/transformers/k8s/node_test.go
@@ -263,7 +263,7 @@ func TestBuildTasks(t *testing.T) {
 	errs := errors.NewCompileErrors()
 
 	t.Run("Tasks with annotations", func(t *testing.T) {
-		taskMap := buildTasks(tasks, errs)
+		taskMap := BuildTasks(tasks, errs)
 
 		annInputTask := taskMap[(&core.Identifier{Name: "annotatedInput"}).String()]
 		assert.Nil(t, annInputTask.Interface.Inputs.Variables["a"].Type.Annotation)
diff --git a/pkg/compiler/transformers/k8s/workflow.go b/pkg/compiler/transformers/k8s/workflow.go
index 32396ee41..167db9e97 100644
--- a/pkg/compiler/transformers/k8s/workflow.go
+++ b/pkg/compiler/transformers/k8s/workflow.go
@@ -80,7 +80,7 @@ func WorkflowNameFromID(id string) string {
 	return tokens[2]
 }
 
-func buildFlyteWorkflowSpec(wf *core.CompiledWorkflow, tasks []*core.CompiledTask, errs errors.CompileErrors) (
+func BuildFlyteWorkflowSpec(wf *core.CompiledWorkflow, tasks []*core.CompiledTask, errs errors.CompileErrors) (
 	spec *v1alpha1.WorkflowSpec, err error) {
 	wf.Template.Interface = StripInterfaceTypeMetadata(wf.Template.Interface)
 
@@ -172,7 +172,7 @@ func BuildFlyteWorkflow(wfClosure *core.CompiledWorkflowClosure, inputs *core.Li
 		t.Template.Interface = StripInterfaceTypeMetadata(t.Template.Interface)
 	}
 
-	primarySpec, err := buildFlyteWorkflowSpec(wfClosure.Primary, wfClosure.Tasks, errs.NewScope())
+	primarySpec, err := BuildFlyteWorkflowSpec(wfClosure.Primary, wfClosure.Tasks, errs.NewScope())
 	if err != nil {
 		errs.Collect(errors.NewWorkflowBuildError(err))
 		return nil, errs
@@ -180,7 +180,7 @@ func BuildFlyteWorkflow(wfClosure *core.CompiledWorkflowClosure, inputs *core.Li
 
 	subwfs := make(map[v1alpha1.WorkflowID]*v1alpha1.WorkflowSpec, len(wfClosure.SubWorkflows))
 	for _, subWf := range wfClosure.SubWorkflows {
-		spec, err := buildFlyteWorkflowSpec(subWf, wfClosure.Tasks, errs.NewScope())
+		spec, err := BuildFlyteWorkflowSpec(subWf, wfClosure.Tasks, errs.NewScope())
 		if err != nil {
 			errs.Collect(errors.NewWorkflowBuildError(err))
 		} else {
@@ -221,7 +221,7 @@ func BuildFlyteWorkflow(wfClosure *core.CompiledWorkflowClosure, inputs *core.Li
 		Inputs:       &v1alpha1.Inputs{LiteralMap: inputs},
 		WorkflowSpec: primarySpec,
 		SubWorkflows: subwfs,
-		Tasks:        buildTasks(tasks, errs.NewScope()),
+		Tasks:        BuildTasks(tasks, errs.NewScope()),
 		NodeDefaults: v1alpha1.NodeDefaults{Interruptible: interruptible},
 	}
 
@@ -269,7 +269,7 @@ func MergeWorkflowClosure(flyteWf *v1alpha1.FlyteWorkflow, wfClosure *core.Compi
 		return errs
 	}
 
-	primarySpec, err := buildFlyteWorkflowSpec(wfClosure.Primary, wfClosure.Tasks, errs.NewScope())
+	primarySpec, err := BuildFlyteWorkflowSpec(wfClosure.Primary, wfClosure.Tasks, errs.NewScope())
 	if err != nil {
 		errs.Collect(errors.NewWorkflowBuildError(err))
 		return errs
@@ -277,7 +277,7 @@ func MergeWorkflowClosure(flyteWf *v1alpha1.FlyteWorkflow, wfClosure *core.Compi
 
 	subwfs := make(map[v1alpha1.WorkflowID]*v1alpha1.WorkflowSpec, len(wfClosure.SubWorkflows))
 	for _, subWf := range wfClosure.SubWorkflows {
-		spec, err := buildFlyteWorkflowSpec(subWf, wfClosure.Tasks, errs.NewScope())
+		spec, err := BuildFlyteWorkflowSpec(subWf, wfClosure.Tasks, errs.NewScope())
 		if err != nil {
 			errs.Collect(errors.NewWorkflowBuildError(err))
 		} else {
@@ -289,7 +289,7 @@ func MergeWorkflowClosure(flyteWf *v1alpha1.FlyteWorkflow, wfClosure *core.Compi
 		return errs
 	}
 
-	tasks := buildTasks(wfClosure.Tasks, errs.NewScope())
+	tasks := BuildTasks(wfClosure.Tasks, errs.NewScope())
 
 	flyteWf.WorkflowSpec = primarySpec
 	flyteWf.SubWorkflows = subwfs
diff --git a/pkg/controller/crdfieldsstore/passthrough.go b/pkg/controller/crdfieldsstore/passthrough.go
index c682843a3..a617f6f59 100644
--- a/pkg/controller/crdfieldsstore/passthrough.go
+++ b/pkg/controller/crdfieldsstore/passthrough.go
@@ -2,7 +2,10 @@ package crdfieldsstore
 
 import (
 	"context"
+
 	"github.com/flyteorg/flyteidl/gen/pb-go/flyteidl/core"
+	"github.com/flyteorg/flytepropeller/pkg/compiler/errors"
+	"github.com/flyteorg/flytepropeller/pkg/compiler/transformers/k8s"
 
 	"github.com/flyteorg/flytepropeller/pkg/apis/flyteworkflow/v1alpha1"
 	"github.com/flyteorg/flytestdlib/storage"
@@ -17,14 +20,44 @@ func (p *passthroughWorkflowClosureStore) Get(ctx context.Context, dataReference
 		return nil, ErrLocationEmpty
 	}
 
-	workflowClosure := &core.CompiledWorkflowClosure{}
-	err := p.dataStore.ReadProtobuf(ctx, dataReference, workflowClosure)
+	wfClosure := &core.CompiledWorkflowClosure{}
+	err := p.dataStore.ReadProtobuf(ctx, dataReference, wfClosure)
 	if err != nil {
 		return nil, err
 	}
 
-	// FIXME transform workflowClosure to crd fields
-	wfClosureCrdFields := &WfClosureCrdFields{}
+	errs := errors.NewCompileErrors()
+	if wfClosure == nil {
+		errs.Collect(errors.NewValueRequiredErr("root", "wfClosure"))
+		return nil, errs
+	}
+
+	primarySpec, err := k8s.BuildFlyteWorkflowSpec(wfClosure.Primary, wfClosure.Tasks, errs.NewScope())
+	if err != nil {
+		errs.Collect(errors.NewWorkflowBuildError(err))
+		return nil, errs
+	}
+
+	for _, t := range wfClosure.Tasks {
+		t.Template.Interface = k8s.StripInterfaceTypeMetadata(t.Template.Interface)
+	}
+	tasks := k8s.BuildTasks(wfClosure.Tasks, errs.NewScope())
+
+	subwfs := make(map[v1alpha1.WorkflowID]*v1alpha1.WorkflowSpec, len(wfClosure.SubWorkflows))
+	for _, subWf := range wfClosure.SubWorkflows {
+		spec, err := k8s.BuildFlyteWorkflowSpec(subWf, wfClosure.Tasks, errs.NewScope())
+		if err != nil {
+			errs.Collect(errors.NewWorkflowBuildError(err))
+		} else {
+			subwfs[subWf.Template.Id.String()] = spec
+		}
+	}
+
+	wfClosureCrdFields := &WfClosureCrdFields{
+		WorkflowSpec: primarySpec,
+		SubWorkflows: subwfs,
+		Tasks:        tasks,
+	}
 	return wfClosureCrdFields, nil
 }