diff --git a/org.ntlab.traceAnalyzer/src/org/ntlab/deltaExtractor/DeltaExtractor.java b/org.ntlab.traceAnalyzer/src/org/ntlab/deltaExtractor/DeltaExtractor.java
index fbba8de..a1482f3 100644
--- a/org.ntlab.traceAnalyzer/src/org/ntlab/deltaExtractor/DeltaExtractor.java
+++ b/org.ntlab.traceAnalyzer/src/org/ntlab/deltaExtractor/DeltaExtractor.java
@@ -185,6 +185,11 @@
 				removeList.add(enclosingObj);
 				existsInFields++;
 				removeList.add(thisObjectId);		// ��ň�U�AthisObject ����菜��
+				if (enclosingObj.equals(srcObject.getId())) {
+					srcAliasList.put(enclosingObj, new DeltaAlias(Alias.AliasType.FIELD, 0, enclosingObj, tracePoint.duplicate(), true));
+				} else if (enclosingObj.equals(dstObject.getId())) {
+					dstAliasList.put(enclosingObj, new DeltaAlias(Alias.AliasType.FIELD, 0, enclosingObj, tracePoint.duplicate(), false));
+				}
 			}
 		}