diff --git a/samples/bpf/sock_example.c b/samples/bpf/sock_example.c
index 6fc6e193ef1b12ecbb13f5c7729552306632708b..33a637507c00ffb860177596b6e2b1d8f7a23bc0 100644
--- a/samples/bpf/sock_example.c
+++ b/samples/bpf/sock_example.c
@@ -9,10 +9,10 @@
  *   if (value)
  *        (*(u64*)value) += 1;
  *
- * - attaches this program to eth0 raw socket
+ * - attaches this program to loopback interface "lo" raw socket
  *
  * - every second user space reads map[tcp], map[udp], map[icmp] to see
- *   how many packets of given protocol were seen on eth0
+ *   how many packets of given protocol were seen on "lo"
  */
 #include <stdio.h>
 #include <unistd.h>