diff --git a/pkg/build/goenv.go b/pkg/build/goenv.go
index 70d3ae1..d6861b8 100644
--- a/pkg/build/goenv.go
+++ b/pkg/build/goenv.go
@@ -43,11 +43,11 @@ func (b *Build) readProjectMetaInfo() {
 	}
 
 	// get tmp folder name
-	config.GocConfig.TmpModProjectDir = filepath.Join(os.TempDir(), tmpFolderName(config.GocConfig.CurModProjectDir))
+	config.GocConfig.TmpModProjectDir = filepath.Join(os.TempDir(), TmpFolderName(config.GocConfig.CurModProjectDir))
 	// get working dir in the corresponding tmp dir
 	config.GocConfig.TmpWd = filepath.Join(config.GocConfig.TmpModProjectDir, config.GocConfig.CurWd[len(config.GocConfig.CurModProjectDir):])
 	// get GlobalCoverVarImportPath
-	config.GocConfig.GlobalCoverVarImportPath = path.Join(config.GocConfig.ImportPath, tmpFolderName(config.GocConfig.CurModProjectDir))
+	config.GocConfig.GlobalCoverVarImportPath = path.Join(config.GocConfig.ImportPath, TmpFolderName(config.GocConfig.CurModProjectDir))
 	log.Donef("project meta information parsed")
 }
 
diff --git a/pkg/build/tmpfolder.go b/pkg/build/tmpfolder.go
index 1522835..b847ef1 100644
--- a/pkg/build/tmpfolder.go
+++ b/pkg/build/tmpfolder.go
@@ -43,8 +43,8 @@ func (b *Build) copyProjectToTmp() {
 	log.StopWait()
 }
 
-// tmpFolderName generates a directory name according to the path
-func tmpFolderName(path string) string {
+// TmpFolderName generates a directory name according to the path
+func TmpFolderName(path string) string {
 	sum := sha256.Sum256([]byte(path))
 	h := fmt.Sprintf("%x", sum[:6])