diff --git a/net/atm/ioctl.c b/net/atm/ioctl.c
index 8ccee45..7afd8e7 100644
--- a/net/atm/ioctl.c
+++ b/net/atm/ioctl.c
@@ -82,6 +82,9 @@
 		case SIOCGSTAMP: /* borrowed from IP */
 			error = sock_get_timestamp(sk, argp);
 			goto done;
+		case SIOCGSTAMPNS: /* borrowed from IP */
+			error = sock_get_timestampns(sk, argp);
+			goto done;
 		case ATM_SETSC:
 			printk(KERN_WARNING "ATM_SETSC is obsolete\n");
 			error = 0;