diff --git a/networking/netprogs/ntp.xml b/networking/netprogs/ntp.xml
index 1cd5686bd5..79519ab01a 100644
--- a/networking/netprogs/ntp.xml
+++ b/networking/netprogs/ntp.xml
@@ -69,6 +69,11 @@
 -->
     <bridgehead renderas="sect3">ntp Dependencies</bridgehead>
 
+    <bridgehead renderas="sect4">Required</bridgehead>
+    <para role="required">
+      <xref linkend="libcap2"/>
+    </para>
+
     <bridgehead renderas="sect4">Optional</bridgehead>
     <para role="optional"><xref linkend="openssl"/></para>