diff --git a/src/etc/jdepend-frames.xsl b/src/etc/jdepend-frames.xsl
index 1a4e11dd4..8ee8824ef 100644
--- a/src/etc/jdepend-frames.xsl
+++ b/src/etc/jdepend-frames.xsl
@@ -2,7 +2,7 @@
   xmlns:lxslt="http://xml.apache.org/xslt"
   xmlns:redirect="org.apache.xalan.xslt.extensions.Redirect"
   extension-element-prefixes="redirect">
-<xsl:output method="html" indent="yes"/>
+<xsl:output method="html" indent="yes" encoding="US-ASCII"/>
 <xsl:decimal-format decimal-separator="." grouping-separator=","/>
 <!--
  The Apache Software License, Version 1.1
diff --git a/src/etc/jdepend.xsl b/src/etc/jdepend.xsl
index 97dd0f9f9..0d7e79cf8 100644
--- a/src/etc/jdepend.xsl
+++ b/src/etc/jdepend.xsl
@@ -1,5 +1,5 @@
 <xsl:stylesheet	xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
-<xsl:output method="html" indent="yes"/>
+<xsl:output method="html" indent="yes"  encoding="US-ASCII"/>
 <xsl:decimal-format decimal-separator="." grouping-separator="," />
 
 <xsl:template match="JDepend">
diff --git a/src/etc/junit-frames.xsl b/src/etc/junit-frames.xsl
index 815e6e04c..8b4e5bc5d 100644
--- a/src/etc/junit-frames.xsl
+++ b/src/etc/junit-frames.xsl
@@ -2,7 +2,7 @@
 	xmlns:lxslt="http://xml.apache.org/xslt"
 	xmlns:redirect="org.apache.xalan.xslt.extensions.Redirect"
 	extension-element-prefixes="redirect">
-<xsl:output method="html" indent="yes"/>
+<xsl:output method="html" indent="yes" encoding="US-ASCII"/>
 <xsl:decimal-format decimal-separator="." grouping-separator=","/>
 <!--
  The Apache Software License, Version 1.1
diff --git a/src/etc/junit-noframes.xsl b/src/etc/junit-noframes.xsl
index eeba253b8..ea70028b2 100644
--- a/src/etc/junit-noframes.xsl
+++ b/src/etc/junit-noframes.xsl
@@ -1,5 +1,5 @@
 <xsl:stylesheet	xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
-<xsl:output method="html" indent="yes"/>
+<xsl:output method="html" indent="yes" encoding="US-ASCII"/>
 <xsl:decimal-format decimal-separator="." grouping-separator="," />
 <!--
  The Apache Software License, Version 1.1
diff --git a/src/etc/log.xsl b/src/etc/log.xsl
index 28771db19..1cb583b30 100644
--- a/src/etc/log.xsl
+++ b/src/etc/log.xsl
@@ -1,5 +1,5 @@
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
-<xsl:output method="html" indent="yes"/>
+<xsl:output method="html" indent="yes" encoding="US-ASCII"/>
 <!--
  The Apache Software License, Version 1.1
 
diff --git a/src/etc/maudit-frames.xsl b/src/etc/maudit-frames.xsl
index 37f751984..476f65e7a 100644
--- a/src/etc/maudit-frames.xsl
+++ b/src/etc/maudit-frames.xsl
@@ -2,7 +2,7 @@
 	xmlns:lxslt="http://xml.apache.org/xslt"
 	xmlns:redirect="org.apache.xalan.xslt.extensions.Redirect"
 	extension-element-prefixes="redirect">
-<xsl:output	method="html" indent="yes"/>
+<xsl:output	method="html" indent="yes" encoding="US-ASCII"/>
 <xsl:decimal-format decimal-separator="." grouping-separator="," />
 <!--
  The Apache Software License, Version 1.1
diff --git a/src/etc/mmetrics-frames.xsl b/src/etc/mmetrics-frames.xsl
index 35f7799db..001112926 100644
--- a/src/etc/mmetrics-frames.xsl
+++ b/src/etc/mmetrics-frames.xsl
@@ -4,7 +4,7 @@
   xmlns:redirect="org.apache.xalan.xslt.extensions.Redirect"
   exclude-result-prefixes="xalan"
   extension-element-prefixes="redirect">
-<xsl:output method="html" indent="yes"/>
+<xsl:output method="html" indent="yes" encoding="US-ASCII"/>
 <xsl:decimal-format decimal-separator="." grouping-separator="," />
 <!--
  The Apache Software License, Version 1.1