diff --git a/TracerOnJavassist/src/tracer/JSONTraceGenerator.java b/TracerOnJavassist/src/tracer/JSONTraceGenerator.java
index a90c228..b55af53 100644
--- a/TracerOnJavassist/src/tracer/JSONTraceGenerator.java
+++ b/TracerOnJavassist/src/tracer/JSONTraceGenerator.java
@@ -71,9 +71,7 @@
 		keys.add("args");			values.add(generateJSONArrayGenerator(argList));
 		keys.add("threadId");		values.add(threadId);
 		keys.add("time");			values.add(timeStamp);
-		String output = "tracer.MyPrintStream.println(" + generateJSONMapGenerator(keys, values) + " + \",\");";
-		System.out.println(output);
-		return output;
+		return "tracer.MyPrintStream.println(" + generateJSONMapGenerator(keys, values) + " + \",\");";
 	}
 
 	@Override