diff --git a/sysom_server/sysom_api/apps/host/models.py b/sysom_server/sysom_api/apps/host/models.py
index 61f09f63a0b497503776993e84237e62c1017b1d..f8b68242a114fbefb1ad7a01be85fcdfed7cc834 100644
--- a/sysom_server/sysom_api/apps/host/models.py
+++ b/sysom_server/sysom_api/apps/host/models.py
@@ -33,7 +33,7 @@ class HostModel(BaseModel):
 
 class Cluster(BaseModel):
     cluster_name = models.CharField(max_length=128, unique=True)
-    cluster_description = models.CharField(max_length=255, default="")
+    cluster_description = models.CharField(max_length=255, default="", null=True, blank=True)
 
     class Meta:
         db_table = "sys_cluster"