diff --git a/compute/src/main/java/org/zstack/compute/vm/VmInstanceBase.java b/compute/src/main/java/org/zstack/compute/vm/VmInstanceBase.java
index e4a581eac2f..7f2b556fa27 100755
--- a/compute/src/main/java/org/zstack/compute/vm/VmInstanceBase.java
+++ b/compute/src/main/java/org/zstack/compute/vm/VmInstanceBase.java
@@ -1059,11 +1059,14 @@ private void createPreFencePendingTag(HaStartVmInstanceMsg msg) {
         String suspectHostUuid = StringUtils.trimToNull(CollectionUtils.isEmpty(msg.getSoftAvoidHostUuids()) ?
                 self.getLastHostUuid() : msg.getSoftAvoidHostUuids().get(0));
         String peerHostUuid = StringUtils.trimToNull(msg.getAccessiblePeerHostUuid());
-        if (suspectHostUuid == null || peerHostUuid == null) {
-            logger.debug(String.format("HA-start vm[%s]: skip creating pre-fence tag because suspect host[%s] or peer host[%s] is absent",
-                    self.getUuid(), suspectHostUuid, peerHostUuid));
+        if (suspectHostUuid == null) {
+            logger.debug(String.format("HA-start vm[%s]: skip creating pre-fence tag because suspect host is absent",
+                    self.getUuid()));
             return;
         }
+        if (peerHostUuid == null) {
+            peerHostUuid = VmSystemTags.HA_PRE_FENCE_ACCESSIBLE_PEER_HOST_UUID_NONE;
+        }
 
         Map<String, String> tokens = new HashMap<>();
         tokens.put(VmSystemTags.HA_PRE_FENCE_SUSPECT_HOST_UUID_TOKEN, suspectHostUuid);
diff --git a/compute/src/main/java/org/zstack/compute/vm/VmSystemTags.java b/compute/src/main/java/org/zstack/compute/vm/VmSystemTags.java
index 606462ac9ba..4d766070a2a 100755
--- a/compute/src/main/java/org/zstack/compute/vm/VmSystemTags.java
+++ b/compute/src/main/java/org/zstack/compute/vm/VmSystemTags.java
@@ -321,6 +321,7 @@ public String desensitizeTag(SystemTag systemTag, String tag) {
 
     public static String HA_PRE_FENCE_SUSPECT_HOST_UUID_TOKEN = "suspectHostUuid";
     public static String HA_PRE_FENCE_ACCESSIBLE_PEER_HOST_UUID_TOKEN = "accessiblePeerHostUuid";
+    public static String HA_PRE_FENCE_ACCESSIBLE_PEER_HOST_UUID_NONE = "none";
     public static PatternedSystemTag HA_PRE_FENCE_PENDING =
             new PatternedSystemTag(String.format("haPreFencePending::{%s}::{%s}",
                     HA_PRE_FENCE_SUSPECT_HOST_UUID_TOKEN,