diff --git a/docs/chapters/using.xml b/docs/chapters/using_sniff.xml
similarity index 99%
rename from docs/chapters/using.xml
rename to docs/chapters/using_sniff.xml
index a20f4e7..b6271ef 100644
--- a/docs/chapters/using.xml
+++ b/docs/chapters/using_sniff.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<chapter id="chapter_using">
+<chapter id="chapter_sniff">
     <title>Sniffing your SIM</title>
 
     <section id="hw_setup">
diff --git a/docs/usermanual.xml b/docs/usermanual.xml
index 1c01704..626b1dd 100644
--- a/docs/usermanual.xml
+++ b/docs/usermanual.xml
@@ -8,7 +8,7 @@
 <!ENTITY chapter-introduction SYSTEM "chapters/introduction.xml">
 <!ENTITY chapter-installation SYSTEM "chapters/installation.xml">
 <!ENTITY chapter-hw-details SYSTEM "chapters/hardware_details.xml">
-<!ENTITY chapter-using SYSTEM "chapters/using.xml">
+<!ENTITY chapter-using-sniff SYSTEM "chapters/using_sniff.xml">
 <!ENTITY chapter-building SYSTEM "chapters/building.xml">
 <!ENTITY chapter-appendix SYSTEM "chapters/appendix.xml">
 ]>
@@ -55,7 +55,7 @@
   &chapter-introduction;
   &chapter-installation;
   &chapter-hw-details;
-  &chapter-using;
+  &chapter-using-sniff;
   &chapter-building;
 
   &chapter-appendix;