diff --git a/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/JSONArrayAdvisor.java b/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/JSONArrayAdvisor.java
index 21c055c..ba391f2 100644
--- a/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/JSONArrayAdvisor.java
+++ b/org.ntlab.traceCollector/src/org/ntlab/traceCollector/tracer/JSONArrayAdvisor.java
@@ -86,7 +86,7 @@
 	public static void arrayWriteChar(Object array, int index, char value) {
 		long threadId = Thread.currentThread().getId();
 		long timeStamp = System.nanoTime();
-		JSONTraceGenerator.arraySetOutput(array.getClass().getName(), Integer.toString(System.identityHashCode(array)), index, "char", Character.toString(value), threadId, timeStamp);
+		JSONTraceGenerator.arraySetOutput(array.getClass().getName(), Integer.toString(System.identityHashCode(array)), index, "char", Integer.toString(Character.getNumericValue(value)), threadId, timeStamp);
 		((char [])array)[index] = value;
 	}
 
@@ -94,7 +94,7 @@
 		char value = ((char [])array)[index];
 		long threadId = Thread.currentThread().getId();
 		long timeStamp = System.nanoTime();
-		JSONTraceGenerator.arrayGetOutput(array.getClass().getName(), Integer.toString(System.identityHashCode(array)), index, "char", Character.toString(value), threadId, timeStamp);
+		JSONTraceGenerator.arrayGetOutput(array.getClass().getName(), Integer.toString(System.identityHashCode(array)), index, "char", Integer.toString(Character.getNumericValue(value)), threadId, timeStamp);
 		return value;
 	}