diff --git a/pkg/moq/moq_test.go b/pkg/moq/moq_test.go
index bfa7fe1..626033a 100644
--- a/pkg/moq/moq_test.go
+++ b/pkg/moq/moq_test.go
@@ -2,7 +2,9 @@ package moq
 
 import (
 	"bytes"
+	"io"
 	"os"
+	"os/exec"
 	"strings"
 	"testing"
 )
@@ -241,3 +243,31 @@ func TestEmptyInterface(t *testing.T) {
 		t.Error("contains sync import, although this package isn't used")
 	}
 }
+
+func TestGoGenerateVendoredPackages(t *testing.T) {
+	cmd := exec.Command("go", "generate", "./...")
+	cmd.Dir = "testpackages/gogenvendoring"
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		t.Errorf("StdoutPipe: %s", err)
+	}
+	defer stdout.Close()
+	err = cmd.Start()
+	if err != nil {
+		t.Errorf("Start: %s", err)
+	}
+	buf := bytes.NewBuffer(nil)
+	io.Copy(buf, stdout)
+	err = cmd.Wait()
+	if err != nil {
+		if exitErr, ok := err.(*exec.ExitError); ok {
+			t.Errorf("Wait: %s %s", exitErr, string(exitErr.Stderr))
+		} else {
+			t.Errorf("Wait: %s", err)
+		}
+	}
+	s := buf.String()
+	if strings.Contains(s, `vendor/`) {
+		t.Error("contains vendor directory in import path")
+	}
+}
diff --git a/pkg/moq/testpackages/dotimport/service_moq_test.go b/pkg/moq/testpackages/dotimport/service_moq_test.go
new file mode 100755
index 0000000..debc0fa
--- /dev/null
+++ b/pkg/moq/testpackages/dotimport/service_moq_test.go
@@ -0,0 +1,73 @@
+// Code generated by moq; DO NOT EDIT
+// github.com/matryer/moq
+
+package dotimport_test
+
+import (
+	"github.com/matryer/moq/pkg/moq/testpackages/dotimport"
+	"sync"
+)
+
+var (
+	lockServiceMockUser sync.RWMutex
+)
+
+// ServiceMock is a mock implementation of Service.
+//
+//     func TestSomethingThatUsesService(t *testing.T) {
+//
+//         // make and configure a mocked Service
+//         mockedService := &ServiceMock{
+//             UserFunc: func(ID string) (dotimport.User, error) {
+// 	               panic("TODO: mock out the User method")
+//             },
+//         }
+//
+//         // TODO: use mockedService in code that requires Service
+//         //       and then make assertions.
+//
+//     }
+type ServiceMock struct {
+	// UserFunc mocks the User method.
+	UserFunc func(ID string) (dotimport.User, error)
+
+	// calls tracks calls to the methods.
+	calls struct {
+		// User holds details about calls to the User method.
+		User []struct {
+			// ID is the ID argument value.
+			ID string
+		}
+	}
+}
+
+// User calls UserFunc.
+func (mock *ServiceMock) User(ID string) (dotimport.User, error) {
+	if mock.UserFunc == nil {
+		panic("moq: ServiceMock.UserFunc is nil but Service.User was just called")
+	}
+	callInfo := struct {
+		ID string
+	}{
+		ID: ID,
+	}
+	lockServiceMockUser.Lock()
+	mock.calls.User = append(mock.calls.User, callInfo)
+	lockServiceMockUser.Unlock()
+	return mock.UserFunc(ID)
+}
+
+// UserCalls gets all the calls that were made to User.
+// Check the length with:
+//     len(mockedService.UserCalls())
+func (mock *ServiceMock) UserCalls() []struct {
+	ID string
+} {
+	var calls []struct {
+		ID string
+	}
+	lockServiceMockUser.RLock()
+	calls = mock.calls.User
+	lockServiceMockUser.RUnlock()
+	return calls
+}
diff --git a/pkg/moq/testpackages/gogenvendoring/user/user.go b/pkg/moq/testpackages/gogenvendoring/user/user.go
new file mode 100644
index 0000000..6391d05
--- /dev/null
+++ b/pkg/moq/testpackages/gogenvendoring/user/user.go
@@ -0,0 +1,10 @@
+package user
+
+import "github.com/matryer/somerepo"
+
+//go:generate moq . Service
+
+// Service does something good with computers.
+type Service interface {
+	DoSomething(somerepo.SomeType) error
+}
diff --git a/pkg/vendor/github.com/matryer/somerepo/yep.go b/pkg/vendor/github.com/matryer/somerepo/yep.go
new file mode 100644
index 0000000..8f4ff9a
--- /dev/null
+++ b/pkg/vendor/github.com/matryer/somerepo/yep.go
@@ -0,0 +1,3 @@
+package somerepo
+
+type SomeType string