diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACDetail.xsl b/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACDetail.xsl
index 68a6235b28..1c0444d07b 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACDetail.xsl
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACDetail.xsl
@@ -159,7 +159,7 @@
                     <xsl:with-param name="basetags">100,110,111,700,710,711</xsl:with-param>
                     <xsl:with-param name="codes">abc</xsl:with-param>
                     <xsl:with-param name="index">au</xsl:with-param>
-                    <!-- do not use label 'by ' here, it would be repeated for every occurence of 100,110,111,700,710,711 -->
+                    <!-- do not use label 'by ' here, it would be repeated for every occurrence of 100,110,111,700,710,711 -->
                 </xsl:call-template>
             </h5>
         </xsl:if>