diff --git a/pkg/io/compress.go b/pkg/io/compress.go
index 9e3b5497..80ac4361 100644
--- a/pkg/io/compress.go
+++ b/pkg/io/compress.go
@@ -11,10 +11,9 @@ type FormatArchive string
 
 const (
 	Zip      FormatArchive = "zip"
-	Gz       FormatArchive = "gz"
 	Bz2      FormatArchive = "bz2"
 	Tar      FormatArchive = "tar"
-	TarGz    FormatArchive = "tar.gz"
+	TGz      FormatArchive = "tgz"
 	Xz       FormatArchive = "xz"
 	SevenZip FormatArchive = "7z"
 )
@@ -49,7 +48,7 @@ func Compress(dir string, src []string, dst string) error {
 	switch format {
 	case Zip:
 		cmd = exec.Command("zip", append([]string{"-qr", "-o", dst}, src...)...)
-	case Gz, TarGz:
+	case TGz:
 		cmd = exec.Command("tar", append([]string{"-czf", dst}, src...)...)
 	case Bz2:
 		cmd = exec.Command("tar", append([]string{"-cjf", dst}, src...)...)
@@ -86,7 +85,7 @@ func UnCompress(src string, dst string) error {
 	switch format {
 	case Zip:
 		cmd = exec.Command("unzip", "-qo", src, "-d", dst)
-	case Gz, TarGz:
+	case TGz:
 		cmd = exec.Command("tar", "-xzf", src, "-C", dst)
 	case Bz2:
 		cmd = exec.Command("tar", "-xjf", src, "-C", dst)
@@ -108,14 +107,12 @@ func formatArchiveByPath(path string) (FormatArchive, error) {
 	switch filepath.Ext(path) {
 	case ".zip":
 		return Zip, nil
-	case ".gz":
-		return Gz, nil
 	case ".bz2":
 		return Bz2, nil
 	case ".tar":
 		return Tar, nil
-	case ".tar.gz", ".tgz":
-		return TarGz, nil
+	case ".gz", ".tar.gz", ".tgz":
+		return TGz, nil
 	case ".xz":
 		return Xz, nil
 	case ".7z":
diff --git a/pkg/io/io_test.go b/pkg/io/io_test.go
index 999dc44e..07074cfe 100644
--- a/pkg/io/io_test.go
+++ b/pkg/io/io_test.go
@@ -1,7 +1,6 @@
 package io
 
 import (
-	"github.com/go-rat/utils/debug"
 	"os"
 	"path/filepath"
 	"testing"
@@ -64,12 +63,12 @@ func (s *IOTestSuite) TestCompress() {
 	s.NoError(err)
 	err = Compress(abs, src, filepath.Join(abs, "compress_test.zip"))
 	s.NoError(err)
-	err = Compress(abs, src, filepath.Join(abs, "compress_test.gz"))
-	s.NoError(err)
 	err = Compress(abs, src, filepath.Join(abs, "compress_test.bz2"))
 	s.NoError(err)
 	err = Compress(abs, src, filepath.Join(abs, "compress_test.tar"))
 	s.NoError(err)
+	err = Compress(abs, src, filepath.Join(abs, "compress_test.gz"))
+	s.NoError(err)
 	err = Compress(abs, src, filepath.Join(abs, "compress_test.tar.gz"))
 	s.NoError(err)
 	err = Compress(abs, src, filepath.Join(abs, "compress_test.tgz"))
@@ -93,12 +92,12 @@ func (s *IOTestSuite) TestUnCompress() {
 	s.NoError(err)
 	err = Compress(abs, src, filepath.Join(abs, "uncompress_test.zip"))
 	s.NoError(err)
-	err = Compress(abs, src, filepath.Join(abs, "uncompress_test.gz"))
-	s.NoError(err)
 	err = Compress(abs, src, filepath.Join(abs, "uncompress_test.bz2"))
 	s.NoError(err)
 	err = Compress(abs, src, filepath.Join(abs, "uncompress_test.tar"))
 	s.NoError(err)
+	err = Compress(abs, src, filepath.Join(abs, "uncompress_test.gz"))
+	s.NoError(err)
 	err = Compress(abs, src, filepath.Join(abs, "uncompress_test.tar.gz"))
 	s.NoError(err)
 	err = Compress(abs, src, filepath.Join(abs, "uncompress_test.tgz"))
@@ -116,15 +115,6 @@ func (s *IOTestSuite) TestUnCompress() {
 	data, err = Read("testdata/uncompressed_zip/uncompress_test2.txt")
 	s.NoError(err)
 	s.Equal("File 2", data)
-	err = UnCompress(filepath.Join(abs, "uncompress_test.gz"), filepath.Join(abs, "uncompressed_gz"))
-	s.NoError(err)
-	debug.Dump(ReadDir("testdata/uncompressed_gz"))
-	data, err = Read("testdata/uncompressed_gz/uncompress_test1.txt")
-	s.NoError(err)
-	s.Equal("File 1", data)
-	data, err = Read("testdata/uncompressed_gz/uncompress_test2.txt")
-	s.NoError(err)
-	s.Equal("File 2", data)
 	err = UnCompress(filepath.Join(abs, "uncompress_test.bz2"), filepath.Join(abs, "uncompressed_bz2"))
 	s.NoError(err)
 	data, err = Read("testdata/uncompressed_bz2/uncompress_test1.txt")
@@ -141,6 +131,14 @@ func (s *IOTestSuite) TestUnCompress() {
 	data, err = Read("testdata/uncompressed_tar/uncompress_test2.txt")
 	s.NoError(err)
 	s.Equal("File 2", data)
+	err = UnCompress(filepath.Join(abs, "uncompress_test.gz"), filepath.Join(abs, "uncompressed_gz"))
+	s.NoError(err)
+	data, err = Read("testdata/uncompressed_gz/uncompress_test1.txt")
+	s.NoError(err)
+	s.Equal("File 1", data)
+	data, err = Read("testdata/uncompressed_gz/uncompress_test2.txt")
+	s.NoError(err)
+	s.Equal("File 2", data)
 	err = UnCompress(filepath.Join(abs, "uncompress_test.tar.gz"), filepath.Join(abs, "uncompressed_tar_gz"))
 	s.NoError(err)
 	data, err = Read("testdata/uncompressed_tar_gz/uncompress_test1.txt")