diff --git a/rules/styles/param.xsl b/rules/styles/param.xsl
index ffb4ceb9e7e4c242989313e1dd9144c7e21f66f5..1d2f3b77e9900e9f0d1789bebe5b4521377f8d1c 100644
--- a/rules/styles/param.xsl
+++ b/rules/styles/param.xsl
@@ -112,7 +112,7 @@
  <xsl:variable name="GettyThesaurus"><xsl:text>http://www.getty.edu/research/conducting_research/vocabularies/tgn/?find=</xsl:text></xsl:variable>
  <xsl:variable name="perseus"><xsl:text>http://www.perseus.tufts.edu/hopper/xmlchunk?doc=</xsl:text></xsl:variable>
  <xsl:variable name="perseus_text"><xsl:text>http://www.perseus.tufts.edu/hopper/text?doc=</xsl:text></xsl:variable>
- <xsl:variable name="Piccard-Online"><xsl:text>http://www.piccard-online.de/?nr=</xsl:text></xsl:variable>
+ <xsl:variable name="Piccard-Online"><xsl:text>http://http://www.wasserzeichen-online.de/?po=</xsl:text></xsl:variable>
  <xsl:variable name="Stegmüller_RB"><xsl:text>http://www.repbib.uni-trier.de/cgi-bin/rebiIndex.tcl?ac=searchlist&amp;tlnr=</xsl:text></xsl:variable>
  <xsl:variable name="wilc"><xsl:text>http://watermark.kb.nl/index.html?http://watermark.kb.nl/findWM.asp?wm_number=</xsl:text></xsl:variable>
  <xsl:variable name="wzma"><xsl:text>http://www.ksbm.oeaw.ac.at/_scripts/php/loadWmarkImg.php?refnr_wm=</xsl:text></xsl:variable>