diff --git a/src/main/java/com/alibaba/druid/pool/DruidDataSource.java b/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
index 6b9a50bf20..727ef6d221 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
@@ -1163,12 +1163,13 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
                             buf.append(",sql:\"");
                             buf.append(entry.getKey().getSql());
                             buf.append("\"");
+                            buf.append("\t}");
                         }
-                        buf.append("}");
+                        
                         buf.append("\n\t\t]");
                     }
                     
-                    buf.append("\n}");
+                    buf.append("\n\t}");
                 }
             }
             buf.append("\n]");