diff --git a/History.md b/History.md
index 52f5652..dc106ba 100644
--- a/History.md
+++ b/History.md
@@ -1,3 +1,7 @@
+# 3.0.5 / 2018-07-17
+* 修复join方法一处的笔误
+
+
 # 3.0.4 / 2018-07-09
 * 修复filter解析值为空字符串或0异常的bug
 
diff --git a/docs/3.x.md b/docs/3.x.md
index a348ae2..cf42661 100644
--- a/docs/3.x.md
+++ b/docs/3.x.md
@@ -238,6 +238,7 @@ db.table('student')
 > * $gt 大于
 > * $gte 大于等于
 > * $eq 等于
+> * $ne 不等于
 
 
 ```javascript
@@ -249,6 +250,7 @@ db
 
   // 现有的API不满足时, 可以自己写sql条件, 更复杂自己根据需求写即可
   .filter({ name: { $sql: 'IS NULL' } })
+  .filter({ score: { $sql: 'score + 1' } })
 
   .filter({ id: { $in: [11, 13, 29] } }) // 查询id在给定的这几个值的所有学生
 
diff --git a/lib/utils.js b/lib/utils.js
index 65a71b1..ff8df2e 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -159,7 +159,7 @@ const parser = {
     let sql = ''
     for (let it of tables) {
       it.table = fixtable(it.table)
-      sql += ` JOIN ${it[0]} ON ${it.on} `
+      sql += ` JOIN ${it.table} ON ${it.on} `
     }
     return sql
   },
diff --git a/package.json b/package.json
index b8d0868..7773b27 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mysqli",
-  "version": "3.0.4",
+  "version": "3.0.5",
   "description": "MySQL tool",
   "main": "index.js",
   "dependencies": {