diff --git a/koha-tmpl/intranet-tmpl/prog/en/xslt/MARC21slim2intranetDetail.xsl b/koha-tmpl/intranet-tmpl/prog/en/xslt/MARC21slim2intranetDetail.xsl
index 157aab72fc..a1dca4fba5 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/xslt/MARC21slim2intranetDetail.xsl
+++ b/koha-tmpl/intranet-tmpl/prog/en/xslt/MARC21slim2intranetDetail.xsl
@@ -472,7 +472,7 @@
             <xsl:when test="$TraceSubjectSubdivisions='1'">
                 <xsl:attribute name="href">/cgi-bin/koha/catalogue/search.pl?q=<xsl:call-template name="subfieldSelect">
                         <xsl:with-param name="codes">abcdfgklmnopqrstvxyz</xsl:with-param>
-                        <xsl:with-param name="delimeter"> and </xsl:with-param>
+                        <xsl:with-param name="delimeter"> AND </xsl:with-param>
                         <xsl:with-param name="prefix">(su<xsl:value-of select="$SubjectModifier"/>:<xsl:value-of select="$TracingQuotesLeft"/></xsl:with-param>
                         <xsl:with-param name="suffix"><xsl:value-of select="$TracingQuotesRight"/>)</xsl:with-param>
                     </xsl:call-template>
diff --git a/koha-tmpl/opac-tmpl/prog/en/xslt/MARC21slim2OPACDetail.xsl b/koha-tmpl/opac-tmpl/prog/en/xslt/MARC21slim2OPACDetail.xsl
index 80fb6ac4bc..189bffec19 100644
--- a/koha-tmpl/opac-tmpl/prog/en/xslt/MARC21slim2OPACDetail.xsl
+++ b/koha-tmpl/opac-tmpl/prog/en/xslt/MARC21slim2OPACDetail.xsl
@@ -485,7 +485,7 @@
             <xsl:when test="$TraceSubjectSubdivisions='1'">
                 <xsl:attribute name="href">/cgi-bin/koha/opac-search.pl?q=<xsl:call-template name="subfieldSelect">
                         <xsl:with-param name="codes">abcdfgklmnopqrstvxyz</xsl:with-param>
-                        <xsl:with-param name="delimeter"> and </xsl:with-param>
+                        <xsl:with-param name="delimeter"> AND </xsl:with-param>
                         <xsl:with-param name="prefix">(su<xsl:value-of select="$SubjectModifier"/>:<xsl:value-of select="$TracingQuotesLeft"/></xsl:with-param>
                         <xsl:with-param name="suffix"><xsl:value-of select="$TracingQuotesRight"/>)</xsl:with-param>
                     </xsl:call-template>