diff --git a/pkg/tarutil/tarutil.go b/pkg/tarutil/tarutil.go
index 357f96da..bf47bcb6 100644
--- a/pkg/tarutil/tarutil.go
+++ b/pkg/tarutil/tarutil.go
@@ -25,6 +25,7 @@ import (
 	"io"
 	"io/ioutil"
 	"os/exec"
+	"regexp"
 	"strings"
 )
 
@@ -50,7 +51,8 @@ var (
 type FilesMap map[string][]byte
 
 // ExtractFiles decompresses and extracts only the specified files from an
-// io.Reader representing an archive.
+// io.Reader representing an archive. The files to be extracted are specified
+// by regexp
 func ExtractFiles(r io.Reader, filenames []string) (FilesMap, error) {
 	data := make(map[string][]byte)
 
@@ -78,7 +80,7 @@ func ExtractFiles(r io.Reader, filenames []string) (FilesMap, error) {
 		// Determine if we should extract the element
 		toBeExtracted := false
 		for _, s := range filenames {
-			if strings.HasPrefix(filename, s) {
+			if match, err := regexp.MatchString("^"+s, filename); err == nil && match {
 				toBeExtracted = true
 				break
 			}
diff --git a/pkg/tarutil/tarutil_test.go b/pkg/tarutil/tarutil_test.go
index 9db377ab..fd41cdc2 100644
--- a/pkg/tarutil/tarutil_test.go
+++ b/pkg/tarutil/tarutil_test.go
@@ -57,6 +57,26 @@ func TestExtract(t *testing.T) {
 	}
 }
 
+func TestExtractGlob(t *testing.T) {
+	for _, filename := range testTarballs {
+		f, err := os.Open(testfilepath(filename))
+		assert.Nil(t, err)
+		defer f.Close()
+
+		data, err := ExtractFiles(f, []string{`.+\.txt`})
+		assert.Nil(t, err)
+
+		if c, n := data["test/test.txt"]; !n {
+			assert.Fail(t, "test/test.txt should have been extracted")
+		} else {
+			assert.NotEqual(t, 0, len(c) > 0, "test/test.txt file is empty")
+		}
+		if _, n := data["test.txt"]; !n {
+			assert.Fail(t, "test.txt should also have been extracted")
+		}
+	}
+}
+
 func TestExtractUncompressedData(t *testing.T) {
 	for _, filename := range testTarballs {
 		f, err := os.Open(testfilepath(filename))