diff --git a/pkg/cri/sbserver/sandbox_run.go b/pkg/cri/sbserver/sandbox_run.go
index e86b867c5..056c452cf 100644
--- a/pkg/cri/sbserver/sandbox_run.go
+++ b/pkg/cri/sbserver/sandbox_run.go
@@ -612,7 +612,7 @@ func selectPodIPs(ctx context.Context, configs []*cni.IPConfig, preference strin
 		}
 	case "ipv6":
 		for i, ip := range configs {
-			if ip.IP.To16() != nil {
+			if ip.IP.To4() == nil {
 				return ipString(ip), append(extra, toStrings(configs[i+1:])...)
 			}
 			extra = append(extra, ipString(ip))
diff --git a/pkg/cri/server/sandbox_run.go b/pkg/cri/server/sandbox_run.go
index 55e14e5a8..6cf051823 100644
--- a/pkg/cri/server/sandbox_run.go
+++ b/pkg/cri/server/sandbox_run.go
@@ -692,7 +692,7 @@ func selectPodIPs(ctx context.Context, configs []*cni.IPConfig, preference strin
 		}
 	case "ipv6":
 		for i, ip := range configs {
-			if ip.IP.To16() != nil {
+			if ip.IP.To4() == nil {
 				return ipString(ip), append(extra, toStrings(configs[i+1:])...)
 			}
 			extra = append(extra, ipString(ip))