diff --git a/src/udev/udev-builtin-net_id.c b/src/udev/udev-builtin-net_id.c
index 53653c492a..c6f2e6ddf5 100644
--- a/src/udev/udev-builtin-net_id.c
+++ b/src/udev/udev-builtin-net_id.c
@@ -363,7 +363,7 @@ static int dev_pci_slot(sd_device *dev, struct netnames *names) {
 
                         if (safe_atoi(attr, &function_id) >= 0 &&
                             asprintf(&str, "%s/%08x/", slots, function_id) >= 0 &&
-                            access(str, R_OK) == 0) {
+                            access(str, F_OK) == 0) {
                                 hotplug_slot = function_id;
                                 domain = 0;
                         } else