diff --git a/pkg/provider/ecs/ecs.go b/pkg/provider/ecs/ecs.go
index 084b9b9ca..1204387d7 100644
--- a/pkg/provider/ecs/ecs.go
+++ b/pkg/provider/ecs/ecs.go
@@ -317,8 +317,14 @@ func (p *Provider) listInstances(ctx context.Context, client *awsClient) ([]ecsI
 							protocol:      mapping.Protocol,
 						})
 					}
+
+					privateIP := aws.ToString(container.NetworkInterfaces[0].PrivateIpv4Address)
+					if privateIP == "" {
+						privateIP = aws.ToString(container.NetworkInterfaces[0].Ipv6Address)
+					}
+
 					mach = &machine{
-						privateIP:    aws.ToString(container.NetworkInterfaces[0].PrivateIpv4Address),
+						privateIP:    privateIP,
 						ports:        ports,
 						state:        ec2types.InstanceStateName(strings.ToLower(aws.ToString(task.LastStatus))),
 						healthStatus: task.HealthStatus,