diff --git a/assets/oai_2_iso19139.xslt b/assets/oai_2_iso19139.xslt
index 5936147..1737ff0 100644
--- a/assets/oai_2_iso19139.xslt
+++ b/assets/oai_2_iso19139.xslt
@@ -30,7 +30,7 @@
                 expand-text="yes"
                 version="3.0">
     
-    <xsl:output method="xml" encoding="utf-8" indent="yes"/>
+    <xsl:output method="xml" encoding="iso-8859-1" indent="yes"/>
     <xsl:mode on-no-match="shallow-copy"/> 
     
     <xsl:import href="functions.xslt"/>
diff --git a/assets/oai_datacite.xslt b/assets/oai_datacite.xslt
index 604b1a5..875aedf 100755
--- a/assets/oai_datacite.xslt
+++ b/assets/oai_datacite.xslt
@@ -34,7 +34,7 @@
     xmlns:dc="http://purl.org/dc/elements/1.1/"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
 
-    <xsl:output method="xml" indent="yes" />
+    <xsl:output method="xml" encoding="iso-8859-1" indent="yes" />
 
     <xsl:template match="Rdr_Dataset" mode="oai_datacite">
         <resource xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
diff --git a/datasetxml2oai-pmh.xslt b/datasetxml2oai-pmh.xslt
index 0acc0bd..90bbea7 100755
--- a/datasetxml2oai-pmh.xslt
+++ b/datasetxml2oai-pmh.xslt
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
 
 <xsl:stylesheet version="3.0"
                 xmlns="http://www.openarchives.org/OAI/2.0/"