diff --git a/internal/core/machine_index.go b/internal/core/machine_index.go
deleted file mode 100644
index abaa405fc..000000000
--- a/internal/core/machine_index.go
+++ /dev/null
@@ -1,41 +0,0 @@
-package core
-
-import (
-	"context"
-
-	"github.com/hashicorp/go-hclog"
-	"github.com/hashicorp/vagrant-plugin-sdk/core"
-	"github.com/hashicorp/vagrant/internal/serverclient"
-)
-
-// MachineIndex represents
-type MachineIndex struct {
-	ctx    context.Context
-	logger hclog.Logger
-
-	client *serverclient.VagrantClient
-	// The below are resources we need to close when Close is called, if non-nil
-	closers []func() error
-}
-
-func (m *MachineIndex) Delete(machine core.Machine) (err error) {
-	return nil
-}
-
-func (m *MachineIndex) Get(uuid string) (entry core.Machine, err error) {
-	return nil, nil
-}
-
-func (m *MachineIndex) Includes(uuid string) (exists bool, err error) {
-	return false, nil
-}
-
-func (m *MachineIndex) Set(entry core.Machine) (updatedEntry core.Machine, err error) {
-	return nil, nil
-}
-
-func (m *MachineIndex) Recover(entry core.Machine) (updatedEntry core.Machine, err error) {
-	return nil, nil
-}
-
-var _ core.MachineIndex = (*MachineIndex)(nil)
diff --git a/internal/core/project.go b/internal/core/project.go
index d66f6d4fa..4b29ca179 100644
--- a/internal/core/project.go
+++ b/internal/core/project.go
@@ -105,13 +105,13 @@ func (p *Project) Host() (host core.Host, err error) {
 }
 
 // MachineIndex implements core.Project
-func (p *Project) MachineIndex() (index core.MachineIndex, err error) {
-	index = &MachineIndex{
+func (p *Project) TargetIndex() (index core.TargetIndex, err error) {
+	index = &TargetIndex{
 		ctx:    p.ctx,
 		logger: p.logger,
 		client: p.Client(),
 	}
-	return index, nil
+	return
 }
 
 // MachineNames implements core.Project
diff --git a/internal/core/target_index.go b/internal/core/target_index.go
new file mode 100644
index 000000000..2fa80017c
--- /dev/null
+++ b/internal/core/target_index.go
@@ -0,0 +1,41 @@
+package core
+
+import (
+	"context"
+
+	"github.com/hashicorp/go-hclog"
+	"github.com/hashicorp/vagrant-plugin-sdk/core"
+	"github.com/hashicorp/vagrant/internal/serverclient"
+)
+
+// TargetIndex represents
+type TargetIndex struct {
+	ctx    context.Context
+	logger hclog.Logger
+
+	client *serverclient.VagrantClient
+	// The below are resources we need to close when Close is called, if non-nil
+	closers []func() error
+}
+
+func (m *TargetIndex) Delete(machine core.Machine) (err error) {
+	return nil
+}
+
+func (m *TargetIndex) Get(uuid string) (entry core.Machine, err error) {
+	return nil, nil
+}
+
+func (m *TargetIndex) Includes(uuid string) (exists bool, err error) {
+	return false, nil
+}
+
+func (m *TargetIndex) Set(entry core.Machine) (updatedEntry core.Machine, err error) {
+	return nil, nil
+}
+
+func (m *TargetIndex) Recover(entry core.Machine) (updatedEntry core.Machine, err error) {
+	return nil, nil
+}
+
+var _ core.TargetIndex = (*TargetIndex)(nil)