diff --git a/src/libnm-platform/nm-linux-platform.c b/src/libnm-platform/nm-linux-platform.c
index d27e457814..3d57b7ff3f 100644
--- a/src/libnm-platform/nm-linux-platform.c
+++ b/src/libnm-platform/nm-linux-platform.c
@@ -2305,7 +2305,7 @@ _wireguard_get_device_cb(struct nl_msg *msg, void *arg)
 {
     static const struct nla_policy policy[] = {
         [WGDEVICE_A_IFINDEX]     = {.type = NLA_U32},
-        [WGDEVICE_A_IFNAME]      = {.type = NLA_NUL_STRING, .maxlen = IFNAMSIZ},
+        [WGDEVICE_A_IFNAME]      = {.type = NLA_STRING, .maxlen = IFNAMSIZ},
         [WGDEVICE_A_PRIVATE_KEY] = {},
         [WGDEVICE_A_PUBLIC_KEY]  = {},
         [WGDEVICE_A_FLAGS]       = {.type = NLA_U32},
diff --git a/src/libnm-platform/nm-netlink.h b/src/libnm-platform/nm-netlink.h
index a3644d49bd..3946286716 100644
--- a/src/libnm-platform/nm-netlink.h
+++ b/src/libnm-platform/nm-netlink.h
@@ -36,7 +36,6 @@ enum {
     NLA_STRING, /* NUL terminated character string */
     NLA_FLAG,   /* Flag */
     NLA_NESTED, /* Nested attributes */
-    NLA_NUL_STRING,
     __NLA_TYPE_MAX,
 };