diff --git a/src/main/java/org/fluentd/logger/sender/RawSocketSender.java b/src/main/java/org/fluentd/logger/sender/RawSocketSender.java
index 4b56b41..5cd0b2b 100644
--- a/src/main/java/org/fluentd/logger/sender/RawSocketSender.java
+++ b/src/main/java/org/fluentd/logger/sender/RawSocketSender.java
@@ -203,7 +203,7 @@ public synchronized void flush() {
             catch (Exception handlerException) {
                 LOG.warn("ErrorHandler.handleNetworkError failed", handlerException);
             }
-            LOG.error(this.getClass().getName(), "flush", e);
+            LOG.error("flush failed", e);
             reconnector.addErrorHistory(System.currentTimeMillis());
             close();
         }