diff --git a/koha-tmpl/intranet-tmpl/prog/en/xslt/MARC21slim2intranetDetail.xsl b/koha-tmpl/intranet-tmpl/prog/en/xslt/MARC21slim2intranetDetail.xsl
index 0ad6473a95..9a9c8890f9 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/xslt/MARC21slim2intranetDetail.xsl
+++ b/koha-tmpl/intranet-tmpl/prog/en/xslt/MARC21slim2intranetDetail.xsl
@@ -694,7 +694,7 @@
             </span>
         </xsl:if>
 
-        <!-- Bug 13385 Added 508 field  -->
+        <!-- 508 -->
         <xsl:if test="marc:datafield[@tag=508]">
             <div class="results_summary prod_credits">
                 <span class="label">Production Credits: </span>
diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACDetail.xsl b/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACDetail.xsl
index 038f250e3c..ce656486e0 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACDetail.xsl
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACDetail.xsl
@@ -795,7 +795,7 @@
         </xsl:for-each>
         </xsl:if>
 
-        <!-- Bug 13385 Added 508 field  -->
+        <!-- 508 -->
             <xsl:if test="marc:datafield[@tag=508]">
                 <div class="results_summary prod_credits">
                     <span class="label">Production Credits: </span>