diff --git a/pegjs/mariadb.pegjs b/pegjs/mariadb.pegjs
index a0ce1386..253ed4dd 100644
--- a/pegjs/mariadb.pegjs
+++ b/pegjs/mariadb.pegjs
@@ -105,6 +105,24 @@
     'PERSIST_ONLY': true,
   };
 
+  const reservedFunctionName = {
+    avg: true,
+    sum: true,
+    count: true,
+    max: true,
+    min: true,
+    group_concat: true,
+    std: true,
+    variance: true,
+    current_date: true,
+    current_time: true,
+    current_timestamp: true,
+    current_user: true,
+    user: true,
+    session_user: true,
+    system_user: true
+  }
+
   function createUnaryExpr(op, e) {
     return {
       type: 'unary_expr',
@@ -2931,7 +2949,7 @@ func_call
         over: up
     }
   }
-  / name:proc_func_name &{ return name.toLowerCase() !== 'convert' } __ LPAREN __ l:or_and_where_expr? __ RPAREN __ bc:over_partition? {
+  / name:proc_func_name &{ return name.toLowerCase() !== 'convert' && !reservedFunctionName[name.toLowerCase()] } __ LPAREN __ l:or_and_where_expr? __ RPAREN __ bc:over_partition? {
     if (l && l.type !== 'expr_list') l = { type: 'expr_list', value: [l] }
     if ((name.toUpperCase() === 'TIMESTAMPDIFF' || name.toUpperCase() === 'TIMESTAMPADD') && l.value && l.value[0]) l.value[0] = { type: 'origin', value: l.value[0].column }
       return {
diff --git a/pegjs/mysql.pegjs b/pegjs/mysql.pegjs
index ed43d8c7..67628a6f 100644
--- a/pegjs/mysql.pegjs
+++ b/pegjs/mysql.pegjs
@@ -280,6 +280,24 @@
     'ZEROFILL': true,
   };
 
+  const reservedFunctionName = {
+    avg: true,
+    sum: true,
+    count: true,
+    max: true,
+    min: true,
+    group_concat: true,
+    std: true,
+    variance: true,
+    current_date: true,
+    current_time: true,
+    current_timestamp: true,
+    current_user: true,
+    user: true,
+    session_user: true,
+    system_user: true
+  }
+
   function createUnaryExpr(op, e) {
     return {
       type: 'unary_expr',
@@ -1564,8 +1582,7 @@ lock_stmt
   }
 
 call_stmt
-  = KW_CALL __
-  e: proc_func_call {
+  = KW_CALL __ e:proc_func_call {
     return {
       tableList: Array.from(tableList),
       columnList: columnListTableAlias(columnList),
@@ -3191,6 +3208,7 @@ trim_func_clause
         args,
     };
   }
+
 func_call
   = extract_func / trim_func_clause
   / 'convert'i __ LPAREN __ l:convert_args __ RPAREN __ ca:collate_expr? {
@@ -3216,7 +3234,7 @@ func_call
         over: up
     }
   }
-  / name:proc_func_name &{ return name.toLowerCase() !== 'convert' } __ LPAREN __ l:or_and_where_expr? __ RPAREN __ bc:over_partition? {
+  / name:proc_func_name &{ return name.toLowerCase() !== 'convert' && !reservedFunctionName[name.toLowerCase()] } __ LPAREN __ l:or_and_where_expr? __ RPAREN __ bc:over_partition? {
     if (l && l.type !== 'expr_list') l = { type: 'expr_list', value: [l] }
     if ((name.toUpperCase() === 'TIMESTAMPDIFF' || name.toUpperCase() === 'TIMESTAMPADD') && l.value && l.value[0]) l.value[0] = { type: 'origin', value: l.value[0].column }
       return {
diff --git a/test/mysql-mariadb.spec.js b/test/mysql-mariadb.spec.js
index 746cc87b..1020cbdb 100644
--- a/test/mysql-mariadb.spec.js
+++ b/test/mysql-mariadb.spec.js
@@ -897,10 +897,12 @@ describe('mysql', () => {
       })
     })
 
-    it('should throw error when covert args is not right', () => {
-      const sql = `select convert(json_unquote(json_extract('{"thing": "252"}', "$.thing")));`
+    it('should throw error when args is not right', () => {
+      let sql = `select convert(json_unquote(json_extract('{"thing": "252"}', "$.thing")));`
       expect(parser.astify.bind(parser, sql)).to.throw('Expected "!=", "#", "%", "&", "&&", "*", "+", ",", "-", "--", "/", "/*", "<", "<<", "<=", "<>", "=", ">", ">=", ">>", "AND", "BETWEEN", "IN", "IS", "LIKE", "NOT", "ON", "OR", "OVER", "REGEXP", "RLIKE", "USING", "XOR", "^", "div", "|", "||", or [ \\t\\n\\r] but ")" found.')
       expect(parser.astify.bind(parser, 'select convert("");')).to.throw('Expected "!=", "#", "%", "&", "&&", "*", "+", ",", "-", "--", "/", "/*", "<", "<<", "<=", "<>", "=", ">", ">=", ">>", "AND", "BETWEEN", "COLLATE", "IN", "IS", "LIKE", "NOT", "OR", "REGEXP", "RLIKE", "USING", "XOR", "^", "div", "|", "||", or [ \\t\\n\\r] but ")" found.')
+      sql = 'SELECT AVG(Quantity,age) FROM table1;'
+      expect(parser.astify.bind(parser, sql)).to.throw('Expected "#", "%", "&", "(", ")", "*", "+", "-", "--", "->", "->>", ".", "/", "/*", "<<", ">>", "^", "div", "|", "||", [ \\t\\n\\r], [A-Za-z0-9_$\\x80-￿], or [A-Za-z0-9_:] but "," found.')
     })
 
     it('should join multiple table with comma', () => {