diff --git a/chapter06/mktemp.xml b/chapter06/mktemp.xml
index 28f6153b5..9af6a4e8c 100644
--- a/chapter06/mktemp.xml
+++ b/chapter06/mktemp.xml
@@ -30,7 +30,7 @@ files in shell scripts.</para>
 program, which has functionality much the same as <command>mktemp</command>.
 Patch mktemp to include a <command>tempfile</command> wrapper:</para>
 
-<screen><userinput>patch -Np1 -i ../mktemp-&mktemp-version;-add-tempfile.patch</userinput></screen>
+<screen><userinput>patch -Np1 -i ../mktemp-&mktemp-version;-add-tempfile-1.patch</userinput></screen>
 
 <para>Now prepare Mktemp for compilation:</para>