diff --git a/plugin/pkg/cidr/cidr.go b/plugin/pkg/cidr/cidr.go
index d15648933..15eac6d48 100644
--- a/plugin/pkg/cidr/cidr.go
+++ b/plugin/pkg/cidr/cidr.go
@@ -17,7 +17,7 @@ import (
 func Split(n *net.IPNet) []string {
 	boundary := 8
 	nstr := n.String()
-	if strings.Contains(nstr,":") {
+	if strings.Contains(nstr, ":") {
 		boundary = 4
 	}
 	ones, _ := n.Mask.Size()