diff --git a/api/types/kustomization.go b/api/types/kustomization.go
index 8cc7299b7..464efe878 100644
--- a/api/types/kustomization.go
+++ b/api/types/kustomization.go
@@ -144,6 +144,12 @@ type Kustomization struct {
 // moving content of deprecated fields to newer
 // fields.
 func (k *Kustomization) FixKustomizationPostUnmarshalling() {
+	// PatchesJson6902 should be under the Patches field.
+	for _, patch := range k.PatchesJson6902 {
+		k.Patches = append(k.Patches, patch.ToPatch())
+	}
+	k.PatchesJson6902 = nil
+
 	if k.Kind == "" {
 		k.Kind = KustomizationKind
 	}
diff --git a/api/types/patchjson6902.go b/api/types/patchjson6902.go
index 1a189aa6d..4c90ce201 100644
--- a/api/types/patchjson6902.go
+++ b/api/types/patchjson6902.go
@@ -19,3 +19,9 @@ type PatchJson6902 struct {
 	// inline patch string
 	Patch string `json:"patch,omitempty" yaml:"patch,omitempty"`
 }
+
+// ToPatch converts a PatchJson6902 to its superset Patch.
+func (patch *PatchJson6902) ToPatch() Patch {
+	selector := patch.Target.ToSelector()
+	return Patch{Path: patch.Path, Patch: patch.Patch, Target: &selector}
+}
diff --git a/api/types/patchtarget.go b/api/types/patchtarget.go
index ee8c6a691..85f804574 100644
--- a/api/types/patchtarget.go
+++ b/api/types/patchtarget.go
@@ -13,3 +13,8 @@ type PatchTarget struct {
 	Namespace string `json:"namespace,omitempty" yaml:"namespace,omitempty"`
 	Name      string `json:"name" yaml:"name"`
 }
+
+// ToSelector converts a PatchTarget to a Selector.
+func (target *PatchTarget) ToSelector() Selector {
+	return Selector{Name: target.Name, Namespace: target.Namespace, Gvk: target.Gvk}
+}