diff --git a/buildout/Makefile b/buildout/Makefile
index a498631f5fd6c7b217cc99e56005c3fe134a2f7d..a5e92b1ea720104cce533d1e699fb5ceadeb79b0 100644
--- a/buildout/Makefile
+++ b/buildout/Makefile
@@ -18,6 +18,7 @@ assert-python2.4: bin/python2.4
 	bin/python2.4 -c 'import _xmlplus'
 	bin/python2.4 -c 'import bz2'
 	bin/python2.4 -c 'import dbm'
+	bin/python2.4 -c 'import elementtree'
 	bin/python2.4 -c 'import fpconst'
 	bin/python2.4 -c 'import itools'
 	bin/python2.4 -c 'import ldap'
@@ -29,7 +30,6 @@ assert-python2.4: bin/python2.4
 	bin/python2.4 -c 'import threadframe'
 	bin/python2.4 -c 'import xml.parsers.expat'
 	bin/python2.4 -c 'import zlib'
-	# elementtree
 
 assert-parts-libs:
 	ldd parts/mysql-tritonn-5.0/libexec/mysqld | grep 'parts/senna/lib/libsenna.so.0'