diff --git a/src/core/devices/nm-device.c b/src/core/devices/nm-device.c
index fb0f8df175..e361ff5d3a 100644
--- a/src/core/devices/nm-device.c
+++ b/src/core/devices/nm-device.c
@@ -190,6 +190,7 @@ typedef enum {
 } L3ConfigDataType;
 
 G_STATIC_ASSERT(NM_L3CFG_CONFIG_PRIORITY_IPV4LL == L3_CONFIG_DATA_TYPE_LL_4);
+G_STATIC_ASSERT(NM_L3CFG_CONFIG_PRIORITY_IPV6LL == L3_CONFIG_DATA_TYPE_LL_6);
 
 typedef enum {
     HW_ADDR_TYPE_UNSET = 0,
diff --git a/src/core/nm-l3cfg.h b/src/core/nm-l3cfg.h
index a7d89a2618..cbc974efaa 100644
--- a/src/core/nm-l3cfg.h
+++ b/src/core/nm-l3cfg.h
@@ -7,7 +7,7 @@
 #include "nm-l3-config-data.h"
 
 #define NM_L3CFG_CONFIG_PRIORITY_IPV4LL 0
-#define NM_L3CFG_CONFIG_PRIORITY_IPV6LL 0
+#define NM_L3CFG_CONFIG_PRIORITY_IPV6LL 1
 #define NM_ACD_TIMEOUT_RFC5227_MSEC     9000u
 
 #define NM_TYPE_L3CFG            (nm_l3cfg_get_type())