diff --git a/src/udev/udev-builtin-net_id.c b/src/udev/udev-builtin-net_id.c
index 0f5b11d4d1..78aef206b2 100644
--- a/src/udev/udev-builtin-net_id.c
+++ b/src/udev/udev-builtin-net_id.c
@@ -146,7 +146,7 @@ static int dev_pci_onboard(struct udev_device *dev, struct netnames *names) {
         if (idx <= 0)
                 return -EINVAL;
 
-        /* kernel provided multi-device index */
+        /* kernel provided port index for multiple ports on a single PCI function */
         attr = udev_device_get_sysattr_value(dev, "dev_port");
         if (attr)
                 dev_port = strtol(attr, NULL, 10);
@@ -199,7 +199,7 @@ static int dev_pci_slot(struct udev_device *dev, struct netnames *names) {
         if (sscanf(udev_device_get_sysname(names->pcidev), "%x:%x:%x.%u", &domain, &bus, &slot, &func) != 4)
                 return -ENOENT;
 
-        /* kernel provided multi-device index */
+        /* kernel provided port index for multiple ports on a single PCI function */
         attr = udev_device_get_sysattr_value(dev, "dev_port");
         if (attr)
                 dev_port = strtol(attr, NULL, 10);