diff --git a/TracerOnJavassist/src/tracer/OutputStatementsGenerator.java b/TracerOnJavassist/src/tracer/OutputStatementsGenerator.java
index c542217..0e27573 100644
--- a/TracerOnJavassist/src/tracer/OutputStatementsGenerator.java
+++ b/TracerOnJavassist/src/tracer/OutputStatementsGenerator.java
@@ -153,10 +153,10 @@
 		ArrayList<String> argObjects = new ArrayList<>();
 		for (CtClass c : parameterClasses) {
 			if (!c.isPrimitive()) {
-				argClasses.add("$args[" + p + "].getClass().getName()");
+				argClasses.add("($" + (p + 1) + ").getClass().getName()");
 				argObjects.add("System.identityHashCode($" + (p + 1) + ")");
 			} else {
-				argClasses.add("$args[" + p + "].getClass().getName()");
+				argClasses.add("\"" + c.getName() + "\"");		// ��{�^�̏ꍇ�AgetClass()�ł��Ȃ�����
 				argObjects.add("$" + (p + 1));
 			}
 			p++;