diff --git a/db/db.go b/db/db.go
index 204c38f..e0ed924 100644
--- a/db/db.go
+++ b/db/db.go
@@ -191,7 +191,9 @@ func (db *Db) SizeTable(dbname string) []TableSize {
 				fmt.Printf("cannot get table size of db %s : %v", dbname, err)
 				return false
 			}
-			rs = append(rs, ts)
+			if len(ts.Table) > 0 {
+				rs = append(rs, ts)
+			}
 		}
 		return true
 	})