diff --git a/benchmark_test.go b/benchmark_test.go
index 9ad8289..ca42191 100644
--- a/benchmark_test.go
+++ b/benchmark_test.go
@@ -23,6 +23,7 @@ var (
 	overcomeLanguages []string
 	samples           []*sample
 	samplesDir        string
+	cloned            bool
 )
 
 func TestMain(m *testing.M) {
@@ -35,7 +36,9 @@ func TestMain(m *testing.M) {
 	if err := cloneLinguist(linguistURL); err != nil {
 		log.Fatal(err)
 	}
-	defer os.RemoveAll(filepath.Dir(samplesDir))
+	if cloned {
+		defer os.RemoveAll(filepath.Dir(samplesDir))
+	}
 
 	var err error
 	samples, err = getSamples(samplesDir)
@@ -47,16 +50,23 @@ func TestMain(m *testing.M) {
 }
 
 func cloneLinguist(linguistURL string) error {
-	repoLinguist, err := ioutil.TempDir("", "linguist-")
-	if err != nil {
-		return err
+	repoLinguist := os.Getenv(linguistClonedEnvVar)
+	cloned = repoLinguist == ""
+	if cloned {
+		var err error
+		repoLinguist, err = ioutil.TempDir("", "linguist-")
+		if err != nil {
+			return err
+		}
 	}
 
 	samplesDir = filepath.Join(repoLinguist, "samples")
 
-	cmd := exec.Command("git", "clone", linguistURL, repoLinguist)
-	if err := cmd.Run(); err != nil {
-		return err
+	if cloned {
+		cmd := exec.Command("git", "clone", linguistURL, repoLinguist)
+		if err := cmd.Run(); err != nil {
+			return err
+		}
 	}
 
 	cwd, err := os.Getwd()
@@ -68,7 +78,7 @@ func cloneLinguist(linguistURL string) error {
 		return err
 	}
 
-	cmd = exec.Command("git", "checkout", data.LinguistCommit)
+	cmd := exec.Command("git", "checkout", data.LinguistCommit)
 	if err := cmd.Run(); err != nil {
 		return err
 	}
diff --git a/common_test.go b/common_test.go
index 8c53a6f..de332de 100644
--- a/common_test.go
+++ b/common_test.go
@@ -15,11 +15,13 @@ import (
 )
 
 const linguistURL = "https://github.com/github/linguist.git"
+const linguistClonedEnvVar = "ENRY_TEST_REPO"
 
 type EnryTestSuite struct {
 	suite.Suite
 	repoLinguist string
 	samplesDir   string
+	cloned       bool
 }
 
 func TestEnryTestSuite(t *testing.T) {
@@ -28,14 +30,20 @@ func TestEnryTestSuite(t *testing.T) {
 
 func (s *EnryTestSuite) SetupSuite() {
 	var err error
-	s.repoLinguist, err = ioutil.TempDir("", "linguist-")
-	assert.NoError(s.T(), err)
+	s.repoLinguist = os.Getenv(linguistClonedEnvVar)
+	s.cloned = s.repoLinguist == ""
+	if s.cloned {
+		s.repoLinguist, err = ioutil.TempDir("", "linguist-")
+		assert.NoError(s.T(), err)
+	}
 
 	s.samplesDir = filepath.Join(s.repoLinguist, "samples")
 
-	cmd := exec.Command("git", "clone", linguistURL, s.repoLinguist)
-	err = cmd.Run()
-	assert.NoError(s.T(), err)
+	if s.cloned {
+		cmd := exec.Command("git", "clone", linguistURL, s.repoLinguist)
+		err = cmd.Run()
+		assert.NoError(s.T(), err)
+	}
 
 	cwd, err := os.Getwd()
 	assert.NoError(s.T(), err)
@@ -43,7 +51,7 @@ func (s *EnryTestSuite) SetupSuite() {
 	err = os.Chdir(s.repoLinguist)
 	assert.NoError(s.T(), err)
 
-	cmd = exec.Command("git", "checkout", data.LinguistCommit)
+	cmd := exec.Command("git", "checkout", data.LinguistCommit)
 	err = cmd.Run()
 	assert.NoError(s.T(), err)
 
@@ -52,8 +60,10 @@ func (s *EnryTestSuite) SetupSuite() {
 }
 
 func (s *EnryTestSuite) TearDownSuite() {
-	err := os.RemoveAll(s.repoLinguist)
-	assert.NoError(s.T(), err)
+	if s.cloned {
+		err := os.RemoveAll(s.repoLinguist)
+		assert.NoError(s.T(), err)
+	}
 }
 
 func (s *EnryTestSuite) TestGetLanguage() {
diff --git a/internal/code-generator/generator/generator_test.go b/internal/code-generator/generator/generator_test.go
index efac26a..26926df 100644
--- a/internal/code-generator/generator/generator_test.go
+++ b/internal/code-generator/generator/generator_test.go
@@ -13,7 +13,8 @@ import (
 )
 
 const (
-	lingustURL    = "https://github.com/github/linguist.git"
+	linguistURL = "https://github.com/github/linguist.git"
+	linguistClonedEnvVar = "ENRY_TEST_REPO"
 	commit        = "d5c8db3fb91963c4b2762ca2ea2ff7cfac109f68"
 	samplesDir    = "samples"
 	languagesFile = "lib/linguist/languages.yml"
@@ -80,6 +81,7 @@ const (
 type GeneratorTestSuite struct {
 	suite.Suite
 	tmpLinguist string
+	cloned      bool
 }
 
 func TestGeneratorTestSuite(t *testing.T) {
@@ -88,12 +90,15 @@ func TestGeneratorTestSuite(t *testing.T) {
 
 func (s *GeneratorTestSuite) SetupSuite() {
 	var err error
-	s.tmpLinguist, err = ioutil.TempDir("", "linguist-")
-	assert.NoError(s.T(), err)
-
-	cmd := exec.Command("git", "clone", lingustURL, s.tmpLinguist)
-	err = cmd.Run()
-	assert.NoError(s.T(), err)
+	s.tmpLinguist = os.Getenv(linguistClonedEnvVar)
+	s.cloned = s.tmpLinguist == ""
+	if s.cloned {
+		s.tmpLinguist, err = ioutil.TempDir("", "linguist-")
+		assert.NoError(s.T(), err)
+		cmd := exec.Command("git", "clone", linguistURL, s.tmpLinguist)
+		err = cmd.Run()
+		assert.NoError(s.T(), err)
+	}
 
 	cwd, err := os.Getwd()
 	assert.NoError(s.T(), err)
@@ -101,7 +106,7 @@ func (s *GeneratorTestSuite) SetupSuite() {
 	err = os.Chdir(s.tmpLinguist)
 	assert.NoError(s.T(), err)
 
-	cmd = exec.Command("git", "checkout", commit)
+	cmd := exec.Command("git", "checkout", commit)
 	err = cmd.Run()
 	assert.NoError(s.T(), err)
 
@@ -110,8 +115,10 @@ func (s *GeneratorTestSuite) SetupSuite() {
 }
 
 func (s *GeneratorTestSuite) TearDownSuite() {
-	err := os.RemoveAll(s.tmpLinguist)
-	assert.NoError(s.T(), err)
+	if s.cloned {
+		err := os.RemoveAll(s.tmpLinguist)
+		assert.NoError(s.T(), err)
+	}
 }
 
 func (s *GeneratorTestSuite) TestGenerationFiles() {