diff --git a/ipv4.go b/ipv4.go
index e4ed7f2..029dc19 100644
--- a/ipv4.go
+++ b/ipv4.go
@@ -1,42 +1,47 @@
 package ipformat
 
+import (
+	"strconv"
+	"strings"
+)
+
 // ToV4 converts ipv6 to ipv4
-// func (ip IP) ToV4() (IP, error) {
-// 	if ip.TypeV6 == false {
-// 		return ip, nil
-// 	}
+func (ip IP) ToV4() (IP, error) {
+	if ip.TypeV6 == false {
+		return ip, nil
+	}
 
-// 	// start of ipv4
-// 	var newParts []string
+	// start of ipv4
+	var newParts []string
 
-// 	// Loop through the old parts converting to ipv4
-// 	for i, part := range ip.Parts {
+	// Loop through the old parts converting to ipv4
+	for i, part := range ip.Parts {
 
-// 		// turn the string into a int
-// 		intConverted, _ := strconv.ParseInt(part, 16, 0)
-// 		ip.Parts[i] = strconv.FormatInt(intConverted, 10)
+		// turn the string into a int
+		intConverted, _ := strconv.ParseInt(part, 16, 0)
+		ip.Parts[i] = strconv.FormatInt(intConverted, 10)
 
-// 		// Make sure that no 0s are missing
-// 		if len(ip.Parts[i]) == 1 {
-// 			ip.Parts[i] = "0" + ip.Parts[i]
-// 		}
-// 	}
+		// Make sure that no 0s are missing
+		if len(ip.Parts[i]) == 1 {
+			ip.Parts[i] = "0" + ip.Parts[i]
+		}
+	}
 
-// 	//Set the parts to ipv6
-// 	newParts = append(newParts, ip.Parts[0]+ip.Parts[1])
-// 	newParts = append(newParts, ip.Parts[2]+ip.Parts[3])
-// 	ip.Parts = newParts
+	//Set the parts to ipv6
+	newParts = append(newParts, ip.Parts[0]+ip.Parts[1])
+	newParts = append(newParts, ip.Parts[2]+ip.Parts[3])
+	ip.Parts = newParts
 
-// 	ip.TypeV6 = true
+	ip.TypeV6 = true
 
-// 	ip.Address = strings.Join(ip.Parts, ":")
+	ip.Address = strings.Join(ip.Parts, ":")
 
-// 	if ip.Range {
-// 		// Convert cidr to ipv6
-// 		ip.CIDR = 128 - (32 - ip.CIDR)
-// 		ip.Address = ip.Address + "/" + strconv.FormatInt(ip.CIDR, 10)
-// 	}
+	if ip.Range {
+		// Convert cidr to ipv6
+		ip.CIDR = 128 - (32 - ip.CIDR)
+		ip.Address = ip.Address + "/" + strconv.FormatInt(ip.CIDR, 10)
+	}
 
-// 	// return the new ip address
-// 	return ip, nil
-// }
+	// return the new ip address
+	return ip, nil
+}