diff --git a/org.ntlab.traceAnalyzer/src/org/ntlab/deltaExtractor/Alias.java b/org.ntlab.traceAnalyzer/src/org/ntlab/deltaExtractor/Alias.java
index c59c4c6..e57a82a 100644
--- a/org.ntlab.traceAnalyzer/src/org/ntlab/deltaExtractor/Alias.java
+++ b/org.ntlab.traceAnalyzer/src/org/ntlab/deltaExtractor/Alias.java
@@ -1,5 +1,4 @@
 package org.ntlab.deltaExtractor;
-import org.ntlab.deltaExtractor.Alias.AliasType;
 import org.ntlab.trace.MethodExecution;
 import org.ntlab.trace.MethodInvocation;
 import org.ntlab.trace.Statement;