diff --git a/migration_test.go b/migration_test.go
index 9fc14fa0..3f3a5c8f 100644
--- a/migration_test.go
+++ b/migration_test.go
@@ -5,6 +5,7 @@ import (
 	"database/sql/driver"
 	"errors"
 	"fmt"
+	"os"
 	"reflect"
 	"testing"
 	"time"
@@ -432,3 +433,27 @@ func TestMultipleIndexes(t *testing.T) {
 		t.Error("MultipleIndexes unique index failed")
 	}
 }
+
+func TestModifyColumnType(t *testing.T) {
+	dialect := os.Getenv("GORM_DIALECT")
+	if dialect != "postgres" &&
+		dialect != "mysql" &&
+		dialect != "mssql" {
+		t.Skip("Skipping this because only postgres, mysql and mssql support altering a column type")
+	}
+
+	type ModifyColumnType struct {
+		gorm.Model
+		Name1 string `gorm:"length:100"`
+		Name2 string `gorm:"length:200"`
+	}
+	DB.DropTable(&ModifyColumnType{})
+	DB.CreateTable(&ModifyColumnType{})
+
+	name2Field, _ := DB.NewScope(&ModifyColumnType{}).FieldByName("Name2")
+	name2Type := DB.Dialect().DataTypeOf(name2Field.StructField)
+
+	if err := DB.Model(&ModifyColumnType{}).ModifyColumn("name1", name2Type).Error; err != nil {
+		t.Errorf("No error should happen when ModifyColumn, but got %v", err)
+	}
+}
diff --git a/scope.go b/scope.go
index fda7f653..51ebd5a0 100644
--- a/scope.go
+++ b/scope.go
@@ -1139,7 +1139,7 @@ func (scope *Scope) dropTable() *Scope {
 }
 
 func (scope *Scope) modifyColumn(column string, typ string) {
-	scope.Raw(fmt.Sprintf("ALTER TABLE %v MODIFY %v %v", scope.QuotedTableName(), scope.Quote(column), typ)).Exec()
+	scope.Raw(fmt.Sprintf("ALTER TABLE %v ALTER COLUMN %v TYPE %v", scope.QuotedTableName(), scope.Quote(column), typ)).Exec()
 }
 
 func (scope *Scope) dropColumn(column string) {