diff --git a/common/bytes.go b/common/bytes.go
index 5e553d23c..2d885ac74 100644
--- a/common/bytes.go
+++ b/common/bytes.go
@@ -9,6 +9,28 @@ import (
 	"strings"
 )
 
+func ToHex(b []byte) string {
+	hex := Bytes2Hex(b)
+	// Prefer output of "0x0" instead of "0x"
+	if len(hex) == 0 {
+		hex = "0"
+	}
+	return "0x" + hex
+}
+
+func FromHex(s string) []byte {
+	if len(s) > 1 {
+		if s[0:2] == "0x" {
+			s = s[2:]
+		}
+		if len(s)%2 == 1 {
+			s = "0" + s
+		}
+		return Hex2Bytes(s)
+	}
+	return nil
+}
+
 type Bytes []byte
 
 func (self Bytes) String() string {
diff --git a/common/bytes_test.go b/common/bytes_test.go
index ec106bf4b..4b00aa49b 100644
--- a/common/bytes_test.go
+++ b/common/bytes_test.go
@@ -1,6 +1,9 @@
 package common
 
 import (
+	"bytes"
+	"testing"
+
 	checker "gopkg.in/check.v1"
 )
 
@@ -191,3 +194,21 @@ func (s *BytesSuite) TestRightPadString(c *checker.C) {
 	c.Assert(resstd, checker.Equals, exp)
 	c.Assert(resshrt, checker.Equals, val)
 }
+
+func TestFromHex(t *testing.T) {
+	input := "0x01"
+	expected := []byte{1}
+	result := FromHex(input)
+	if bytes.Compare(expected, result) != 0 {
+		t.Errorf("Expected % x got % x", expected, result)
+	}
+}
+
+func TestFromHexOddLength(t *testing.T) {
+	input := "0x1"
+	expected := []byte{1}
+	result := FromHex(input)
+	if bytes.Compare(expected, result) != 0 {
+		t.Errorf("Expected % x got % x", expected, result)
+	}
+}
diff --git a/common/common.go b/common/common.go
index 155bb5c2a..a61b866c9 100644
--- a/common/common.go
+++ b/common/common.go
@@ -65,27 +65,6 @@ func DefaultDataDir() string {
 	}
 }
 
-func ToHex(b []byte) string {
-	hex := Bytes2Hex(b)
-	// Prefer output of "0x0" instead of "0x"
-	if len(hex) == 0 {
-		hex = "0"
-	}
-	return "0x" + hex
-}
-
-func FromHex(s string) []byte {
-	if len(s) > 1 {
-		if s[0:2] == "0x" {
-			s = s[2:]
-		}
-		if len(s)%2 == 1 {
-			s = "0" + s
-		}
-		return Hex2Bytes(s)
-	}
-	return nil
-}
 func IsWindows() bool {
 	return runtime.GOOS == "windows"
 }
diff --git a/common/common_test.go b/common/common_test.go
index c7ba87f90..0fb5c56f0 100644
--- a/common/common_test.go
+++ b/common/common_test.go
@@ -1,10 +1,8 @@
 package common
 
 import (
-	"bytes"
 	"math/big"
 	"os"
-	"testing"
 
 	checker "gopkg.in/check.v1"
 )
@@ -68,22 +66,3 @@ func (s *CommonSuite) TestLarge(c *checker.C) {
 	c.Assert(adalarge, checker.Equals, "10000E7 Einstein")
 	c.Assert(weilarge, checker.Equals, "100 Babbage")
 }
-
-//fromHex
-func TestFromHex(t *testing.T) {
-	input := "0x01"
-	expected := []byte{1}
-	result := FromHex(input)
-	if bytes.Compare(expected, result) != 0 {
-		t.Errorf("Expected % x got % x", expected, result)
-	}
-}
-
-func TestFromHexOddLength(t *testing.T) {
-	input := "0x1"
-	expected := []byte{1}
-	result := FromHex(input)
-	if bytes.Compare(expected, result) != 0 {
-		t.Errorf("Expected % x got % x", expected, result)
-	}
-}