diff --git a/util/memory/action.go b/util/memory/action.go
index a71d74a877082..6c64a2667fdf0 100644
--- a/util/memory/action.go
+++ b/util/memory/action.go
@@ -100,12 +100,17 @@ func (a *PanicOnExceed) Action(t *Tracker) {
 func (a *PanicOnExceed) SetFallback(ActionOnExceed) {}
 
 var (
-	errMemExceedThreshold = terror.ClassExecutor.New(codeMemExceedThreshold, mysql.MySQLErrName[mysql.ErrMemExceedThreshold])
+	errMemExceedThreshold = terror.ClassUtil.New(mysql.ErrMemExceedThreshold, mysql.MySQLErrName[mysql.ErrMemExceedThreshold])
 )
 
 const (
-	codeMemExceedThreshold terror.ErrCode = 8001
-
 	// PanicMemoryExceed represents the panic message when out of memory quota.
 	PanicMemoryExceed string = "Out Of Memory Quota!"
 )
+
+func init() {
+	errCodes := map[terror.ErrCode]uint16{
+		mysql.ErrMemExceedThreshold: mysql.ErrMemExceedThreshold,
+	}
+	terror.ErrClassToMySQLCodes[terror.ClassUtil] = errCodes
+}
diff --git a/util/memory/tracker_test.go b/util/memory/tracker_test.go
index 62cc7271f774d..3256223029ceb 100644
--- a/util/memory/tracker_test.go
+++ b/util/memory/tracker_test.go
@@ -21,6 +21,7 @@ import (
 
 	"github.com/cznic/mathutil"
 	. "github.com/pingcap/check"
+	"github.com/pingcap/parser/mysql"
 	"github.com/pingcap/tidb/util/logutil"
 	"github.com/pingcap/tidb/util/stringutil"
 	"github.com/pingcap/tidb/util/testleak"
@@ -260,3 +261,7 @@ func BenchmarkConsume(b *testing.B) {
 		}
 	})
 }
+
+func (s *testSuite) TestErrorCode(c *C) {
+	c.Assert(int(errMemExceedThreshold.ToSQLError().Code), Equals, mysql.ErrMemExceedThreshold)
+}