diff --git a/reference/pcre/functions/preg-quote.xml b/reference/pcre/functions/preg-quote.xml
index db205c0731..a2f3c8a418 100644
--- a/reference/pcre/functions/preg-quote.xml
+++ b/reference/pcre/functions/preg-quote.xml
@@ -27,6 +27,12 @@
   <para>
    Note that <literal>/</literal> is not a special regular expression character.
   </para>
+  <note>
+   <para>
+    Note that <function>preg_quote</function> is not meant to be applied to the
+    $replacement string(s) of <function>preg_replace</function> etc.
+   </para>
+  </note>
  </refsect1>
 
  <refsect1 role="parameters">