diff --git a/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlOutputVisitor.java b/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlOutputVisitor.java
index e92927cd61..aa1c35e963 100644
--- a/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlOutputVisitor.java
+++ b/src/main/java/com/alibaba/druid/sql/dialect/mysql/visitor/MySqlOutputVisitor.java
@@ -5272,7 +5272,7 @@ public class MySqlOutputVisitor extends SQLASTOutputVisitor implements MySqlASTV
 
     @Override
     public boolean visit(MySqlAlterServerStatement x) {
-        print0(ucase ? "ATLER SERVER " : "alter server ");
+        print0(ucase ? "ALTER SERVER " : "alter server ");
         x.getName().accept(this);
 
         print(" OPTIONS(");
diff --git a/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java b/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java
index b041864f1a..f3cc93b735 100644
--- a/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java
+++ b/src/main/java/com/alibaba/druid/sql/visitor/SQLASTOutputVisitor.java
@@ -4808,7 +4808,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
 
     @Override
     public boolean visit(SQLAlterSystemGetConfigStatement x) {
-        print0(ucase ? "ALTER SYSTEM GET CONFIG " : "atler system get config ");
+        print0(ucase ? "ALTER SYSTEM GET CONFIG " : "alter system get config ");
         x.getName().accept(this);
 
         return false;
@@ -4816,7 +4816,7 @@ public class SQLASTOutputVisitor extends SQLASTVisitorAdapter implements Paramet
 
     @Override
     public boolean visit(SQLAlterSystemSetConfigStatement x) {
-        print0(ucase ? "ALTER SYSTEM SET COFNIG " : "atler system set config ");
+        print0(ucase ? "ALTER SYSTEM SET COFNIG " : "alter system set config ");
 
         printAndAccept(x.getOptions(), " ");
 
diff --git a/vtune.sh b/vtune.sh
index ab6c7c3ebf..a9b58b7c51 100644
--- a/vtune.sh
+++ b/vtune.sh
@@ -1,2 +1,3 @@
+#!/usr/bin/env bash
 export AMPLXE_EXPERIMENTAL=1
 /opt/intel/vtune_amplifier_xe/bin64/amplxe-cl -collect hotspots java -classpath target/classes/:target/test-classes/ com.alibaba.druid.benckmark.sql.MySqlPerfMain_visitor