diff --git a/Docs/src/build.but b/Docs/src/build.but
index 75868eca..0bf171ee 100644
--- a/Docs/src/build.but
+++ b/Docs/src/build.but
@@ -4,7 +4,7 @@ NSIS version 2.07 introduced a new build system, based on \W{http://www.scons.or
 
 \H{build_general}Building in General
 
-Source code is available in \W{http://cvs.sourceforge.net/viewcvs.py/nsis}{CVS} and as a separate package with every \W{http://sourceforge.net/project/showfiles.php?group_id=22049}{NSIS distribution}.
+Source code is available in \W{http://nsis.cvs.sourceforge.net/nsis}{CVS} and as a separate package with every \W{http://sourceforge.net/project/showfiles.php?group_id=22049}{NSIS distribution}.
 
 To build NSIS \W{http://www.python.org/}{Python} and \W{http://www.scons.org/}{SCons} must be installed. Currently, the supported version of SCons is version 0.96.91. Any version of Python above 1.6 is supported.