diff --git a/src/network/netdev/tuntap.c b/src/network/netdev/tuntap.c
index 0e13c4f88ad..bb5a6b0cf51 100644
--- a/src/network/netdev/tuntap.c
+++ b/src/network/netdev/tuntap.c
@@ -59,10 +59,10 @@ static int netdev_tuntap_add(NetDev *netdev, struct ifreq *ifr) {
 
         fd = open(TUN_DEV, O_RDWR|O_CLOEXEC);
         if (fd < 0)
-                return log_netdev_error_errno(netdev, -errno,  "Failed to open tun dev: %m");
+                return log_netdev_error_errno(netdev, errno,  "Failed to open tun dev: %m");
 
         if (ioctl(fd, TUNSETIFF, ifr) < 0)
-                return log_netdev_error_errno(netdev, -errno, "TUNSETIFF failed on tun dev: %m");
+                return log_netdev_error_errno(netdev, errno, "TUNSETIFF failed on tun dev: %m");
 
         if (netdev->kind == NETDEV_KIND_TAP)
                 t = TAP(netdev);
@@ -79,7 +79,7 @@ static int netdev_tuntap_add(NetDev *netdev, struct ifreq *ifr) {
                         return log_netdev_error_errno(netdev, r, "Cannot resolve user name %s: %m", t->user_name);
 
                 if (ioctl(fd, TUNSETOWNER, uid) < 0)
-                        return log_netdev_error_errno(netdev, -errno, "TUNSETOWNER failed on tun dev: %m");
+                        return log_netdev_error_errno(netdev, errno, "TUNSETOWNER failed on tun dev: %m");
         }
 
         if (t->group_name) {
@@ -90,12 +90,12 @@ static int netdev_tuntap_add(NetDev *netdev, struct ifreq *ifr) {
                         return log_netdev_error_errno(netdev, r, "Cannot resolve group name %s: %m", t->group_name);
 
                 if (ioctl(fd, TUNSETGROUP, gid) < 0)
-                        return log_netdev_error_errno(netdev, -errno, "TUNSETGROUP failed on tun dev: %m");
+                        return log_netdev_error_errno(netdev, errno, "TUNSETGROUP failed on tun dev: %m");
 
         }
 
         if (ioctl(fd, TUNSETPERSIST, 1) < 0)
-                return log_netdev_error_errno(netdev, -errno, "TUNSETPERSIST failed on tun dev: %m");
+                return log_netdev_error_errno(netdev, errno, "TUNSETPERSIST failed on tun dev: %m");
 
         return 0;
 }