diff --git a/src/main/org/apache/tools/ant/XmlLogger.java b/src/main/org/apache/tools/ant/XmlLogger.java
index 7a97fc1c4..68d75dbf9 100644
--- a/src/main/org/apache/tools/ant/XmlLogger.java
+++ b/src/main/org/apache/tools/ant/XmlLogger.java
@@ -136,7 +136,7 @@ public class XmlLogger implements BuildListener {
             Writer out =
                 new OutputStreamWriter(new FileOutputStream(outFilename),
                                        "UTF8");
-            out.write("<?xml version=\"1.0\"?>\n");
+            out.write("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n");
             out.write("<?xml:stylesheet type=\"text/xsl\" href=\"log.xsl\"?>\n\n");
             (new DOMElementWriter()).write(buildElement.element, out, 0, "\t");
             out.flush();