diff --git a/src/main/org/apache/tools/ant/taskdefs/optional/junit/XMLJUnitResultFormatter.java b/src/main/org/apache/tools/ant/taskdefs/optional/junit/XMLJUnitResultFormatter.java
index 3159c10de..419c8b82a 100644
--- a/src/main/org/apache/tools/ant/taskdefs/optional/junit/XMLJUnitResultFormatter.java
+++ b/src/main/org/apache/tools/ant/taskdefs/optional/junit/XMLJUnitResultFormatter.java
@@ -162,7 +162,7 @@ public class XMLJUnitResultFormatter implements JUnitResultFormatter, XMLConstan
         if (out != null) {
             Writer wri = null;
             try {
-                wri = new OutputStreamWriter(out);
+                wri = new OutputStreamWriter(out, "UTF8");
                 wri.write("<?xml version=\"1.0\"?>\n");
                 (new DOMElementWriter()).write(rootElement, wri, 0, "  ");
                 wri.flush();
diff --git a/src/main/org/apache/tools/ant/taskdefs/optional/junit/XMLResultAggregator.java b/src/main/org/apache/tools/ant/taskdefs/optional/junit/XMLResultAggregator.java
index 9a69be43a..e3a384ac6 100644
--- a/src/main/org/apache/tools/ant/taskdefs/optional/junit/XMLResultAggregator.java
+++ b/src/main/org/apache/tools/ant/taskdefs/optional/junit/XMLResultAggregator.java
@@ -56,6 +56,7 @@ package org.apache.tools.ant.taskdefs.optional.junit;
 import java.io.File;
 import java.io.IOException;
 import java.io.OutputStream;
+import java.io.OutputStreamWriter;
 import java.io.PrintWriter;
 import java.io.StringWriter;
 import java.io.FileOutputStream;
@@ -221,7 +222,7 @@ public class XMLResultAggregator extends Task implements XMLConstants {
      */
     protected void writeDOMTree(Document doc, File file) throws IOException {
         OutputStream out = new FileOutputStream( file );
-        PrintWriter wri = new PrintWriter(out);
+        PrintWriter wri = new PrintWriter(new OutputStreamWriter(out, "UTF8"));
         wri.write("<?xml version=\"1.0\"?>\n");
         (new DOMElementWriter()).write(doc.getDocumentElement(), wri, 0, "  ");
         wri.flush();