diff --git a/gin.go b/gin.go
index 19b24da3..5cf19621 100644
--- a/gin.go
+++ b/gin.go
@@ -395,9 +395,8 @@ func (engine *Engine) prepareTrustedCIDRs() ([]*net.IPNet, error) {
 
 	cidr := make([]*net.IPNet, 0, len(engine.trustedProxies))
 	for _, trustedProxy := range engine.trustedProxies {
-		if !strings.Contains(trustedProxy, "/") {
-			trustedProxy, err = utils.MakeTrustIP(trustedProxy)	
-		}
+		trustedProxy, err = utils.MakeTrustIP(trustedProxy)	
+		
 		if err != nil {
 			return cidr, err
 		}
diff --git a/utils/ip.go b/utils/ip.go
index 2301ff6e..9f4d54b9 100644
--- a/utils/ip.go
+++ b/utils/ip.go
@@ -2,6 +2,7 @@ package utils
 
 import (
 	"net"
+	"strings"
 )
 
 func parseIP(ip string) (net.IP, error) {
@@ -17,6 +18,9 @@ func parseIP(ip string) (net.IP, error) {
 }
 
 func MakeTrustIP(trustedIP string) (string, error) {
+	if strings.Contains(trustedIP, "/") {
+		return trustedIP, nil	
+	}
 	ip, err := parseIP(trustedIP)
 
 	if err != nil {