diff --git a/chapter06/tcl-inst.xml b/chapter06/tcl-inst.xml
index 30534a8f2..8d9e87b00 100644
--- a/chapter06/tcl-inst.xml
+++ b/chapter06/tcl-inst.xml
@@ -5,7 +5,7 @@
 
 <para><screen><userinput>cd unix
 ./configure --prefix=/usr
-MAKE
+make
 make test
 make install
 ln -s tclsh8.4 /usr/bin/tclsh</userinput></screen></para>