diff --git a/src/main/java/com/alibaba/druid/pool/DruidDataSourceFactory.java b/src/main/java/com/alibaba/druid/pool/DruidDataSourceFactory.java
index ced815a842..3e1274adbf 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidDataSourceFactory.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidDataSourceFactory.java
@@ -95,9 +95,12 @@ public class DruidDataSourceFactory implements ObjectFactory {
             return null;
         }
         Reference ref = (Reference) obj;
-        //if (!"javax.sql.DataSource".equals(ref.getClassName())) {
-        //    return null;
-        //}
+
+        if ((!"javax.sql.DataSource".equals(ref.getClassName())) //
+            && (!"com.alibaba.druid.pool.DruidDataSource".equals(ref.getClassName())) //
+        ) {
+            return null;
+        }
 
         Properties properties = new Properties();
         for (int i = 0; i < ALL_PROPERTIES.length; i++) {
@@ -111,7 +114,7 @@ public class DruidDataSourceFactory implements ObjectFactory {
 
         return createDataSourceInternal(properties);
     }
-    
+
     protected DataSource createDataSourceInternal(Properties properties) throws Exception {
         DruidDataSource dataSource = new DruidDataSource();
         config(dataSource, properties);