diff --git a/docs/PacketMarking.xml b/docs/PacketMarking.xml
index 95d987833..6dc1f4366 100644
--- a/docs/PacketMarking.xml
+++ b/docs/PacketMarking.xml
@@ -44,7 +44,7 @@
   </caution>
 
   <important>
-    <para>/etc/shorewall/mangle superseded /etc/shorewall/tcruels in Shorewall
+    <para>/etc/shorewall/mangle superseded /etc/shorewall/tcrules in Shorewall
     4.6.0. /etc/shorwall/tcrules is still supported but its use is
     deprecated.</para>
   </important>