diff --git a/kustomize/commands/internal/kustfile/kustomizationfile.go b/kustomize/commands/internal/kustfile/kustomizationfile.go
index 0d313d14c..a0c544537 100644
--- a/kustomize/commands/internal/kustfile/kustomizationfile.go
+++ b/kustomize/commands/internal/kustfile/kustomizationfile.go
@@ -65,6 +65,7 @@ func determineFieldOrder() []string {
 		"Transformers",
 		"Inventory",
 		"Components",
+		"OpenAPI",
 	}
 
 	// Add deprecated fields here.
diff --git a/kustomize/commands/internal/kustfile/kustomizationfile_test.go b/kustomize/commands/internal/kustfile/kustomizationfile_test.go
index 032605730..8e6475d36 100644
--- a/kustomize/commands/internal/kustfile/kustomizationfile_test.go
+++ b/kustomize/commands/internal/kustfile/kustomizationfile_test.go
@@ -47,6 +47,7 @@ func TestFieldOrder(t *testing.T) {
 		"Transformers",
 		"Inventory",
 		"Components",
+		"OpenAPI",
 	}
 	actual := determineFieldOrder()
 	if len(expected) != len(actual) {