diff --git a/reference/pcre/pattern.posix.xml b/reference/pcre/pattern.posix.xml
index e23583badc..374e345ec6 100644
--- a/reference/pcre/pattern.posix.xml
+++ b/reference/pcre/pattern.posix.xml
@@ -21,7 +21,8 @@
    <listitem>
     <simpara>
      Unlike POSIX, the PCRE extension does not have dedicated functions for
-     case-insensitive matching. Instead, this is supported using the /i <link
+     case-insensitive matching. Instead, this is supported using the 
+     <emphasis>i</emphasis> (<literal>PCRE_CASELESS</literal>) <link
      linkend="reference.pcre.pattern.modifiers">pattern modifier</link>. Other
      pattern modifiers are also available for changing the matching strategy.
     </simpara>