diff --git a/src/main/java/com/alibaba/druid/pool/DruidDataSource.java b/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
index 4213e5b299..68b6f7e9ea 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
@@ -915,7 +915,7 @@ public class DruidDataSource extends DruidAbstractDataSource
         } else if (realDriverClassName.equals("com.sybase.jdbc2.jdbc.SybDriver")) {
             this.exceptionSorter = new SybaseExceptionSorter();
 
-        } else if (realDriverClassName.equals("org.postgresql.Driver")) {
+        } else if (realDriverClassName.equals(JdbcConstants.POSTGRESQL_DRIVER)) {
             this.exceptionSorter = new PGExceptionSorter();
             
         } else if (realDriverClassName.equals("com.alibaba.druid.mock.MockDriver")) {
diff --git a/src/test/java/com/alibaba/druid/bvt/pool/vendor/PGExceptionSorterTest.java b/src/test/java/com/alibaba/druid/bvt/pool/vendor/PGExceptionSorterTest.java
new file mode 100644
index 0000000000..fd5031d2c1
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/pool/vendor/PGExceptionSorterTest.java
@@ -0,0 +1,21 @@
+package com.alibaba.druid.bvt.pool.vendor;
+
+import org.junit.Assert;
+import org.postgresql.util.GT;
+import org.postgresql.util.PSQLException;
+import org.postgresql.util.PSQLState;
+
+import junit.framework.TestCase;
+
+import com.alibaba.druid.pool.vendor.PGExceptionSorter;
+
+public class PGExceptionSorterTest extends TestCase {
+
+    public void test_pg() throws Exception {
+        PGExceptionSorter exSorter = new PGExceptionSorter();
+
+        PSQLException ex = new PSQLException(GT.tr("Expected an EOF from server, got: {0}", new Integer(0)),
+                                             PSQLState.COMMUNICATION_ERROR);
+        Assert.assertTrue(exSorter.isExceptionFatal(ex));
+    }
+}