diff --git a/src/gr/spinellis/umlgraph/doclet/UmlGraph.java b/src/gr/spinellis/umlgraph/doclet/UmlGraph.java
index 26c96a4..08d1b4a 100644
--- a/src/gr/spinellis/umlgraph/doclet/UmlGraph.java
+++ b/src/gr/spinellis/umlgraph/doclet/UmlGraph.java
@@ -23,7 +23,6 @@ package gr.spinellis.umlgraph.doclet;
 import com.sun.javadoc.*;
 
 import java.io.*;
-import java.util.*;
 
 /**
  * Doclet API implementation
diff --git a/src/org/umlgraph/doclet/UmlGraph.java b/src/org/umlgraph/doclet/UmlGraph.java
index 26c96a4..08d1b4a 100644
--- a/src/org/umlgraph/doclet/UmlGraph.java
+++ b/src/org/umlgraph/doclet/UmlGraph.java
@@ -23,7 +23,6 @@ package gr.spinellis.umlgraph.doclet;
 import com.sun.javadoc.*;
 
 import java.io.*;
-import java.util.*;
 
 /**
  * Doclet API implementation