diff --git a/Manuals/Tcpi-ug/Preface.docbook b/Manuals/Tcpi-ug/Preface.docbook
index f49e2a8..3291a2b 100755
--- a/Manuals/Tcpi-ug/Preface.docbook
+++ b/Manuals/Tcpi-ug/Preface.docbook
@@ -25,9 +25,8 @@
         each of these LANs is connected one another to share
         information between them using the country's telephone
         network.  This infrastructure would be as expensive as
-        telephone calls would be (without counting the consume of
-        electrical power required by computers and communication
-        devices, of course).
+        telephone calls and consume of electrical power required by
+        computers and communication devices would be.
     </para>
 
     <para>