diff --git a/src/main/java/com/alibaba/druid/pool/DruidDataSource.java b/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
index 1546870f26..5a983aa161 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
@@ -272,7 +272,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
             } else {
                 Connection realConnection = poolalbeConnection.getConnection();
                 if (realConnection.isClosed()) {
-                    discardConnection(realConnection);
+                    discardConnection(null); // 传入null，避免重复关闭
                     continue;
                 }