diff --git a/i18npool/source/localedata/data/pt_PT.xml b/i18npool/source/localedata/data/pt_PT.xml
index e65e9ef8f9bb..0bdb50f0bda0 100644
--- a/i18npool/source/localedata/data/pt_PT.xml
+++ b/i18npool/source/localedata/data/pt_PT.xml
@@ -96,11 +96,11 @@
 <DefaultName></DefaultName>
 </FormatElement>
 <FormatElement msgid="DateFormatskey16" default="false" type="long" usage="DATE" formatindex="24">
-<FormatCode>D.MMM.AAAA</FormatCode>
+<FormatCode>D. MMM "de" AAAA</FormatCode>
 <DefaultName></DefaultName>
 </FormatElement>
 <FormatElement msgid="DateFormatskey17" default="false" type="long" usage="DATE" formatindex="26">
-<FormatCode>D.MMMM.AAAA</FormatCode>
+<FormatCode>D. MMMM "de" AAAA</FormatCode>
 <DefaultName></DefaultName>
 </FormatElement>
 <FormatElement msgid="DateFormatskey18" default="false" type="short" usage="DATE" formatindex="31">