diff --git a/doc/arm/notes.xml b/doc/arm/notes.xml
index 704ccdd039..5b799bf54e 100644
--- a/doc/arm/notes.xml
+++ b/doc/arm/notes.xml
@@ -216,6 +216,15 @@
   <sect2 id="relnotes_bugs">
     <title>Bug Fixes</title>
     <itemizedlist>
+      <listitem>
+        <para>
+	  The error message generated when
+	  <command>named-checkzone</command> or
+	  <command>named-checkconf -z</command> encounters a
+	  <option>$TTL</option> directive without a value has
+	  been clarified. [RT #37138]
+        </para>
+      </listitem>
       <listitem>
         <para>
 	  Semicolon characters (;) included in TXT records were