diff --git a/application.py b/application.py
index 790c2e3..934f5d3 100755
--- a/application.py
+++ b/application.py
@@ -136,7 +136,7 @@ class Application(object):
             'xml', 'cheetah', 'colortext', 'latex', 'insertmini', 'conf',
             'haskell', 'erlang', 'iperl', 'iperlmini', 'ipython', 'ipythonmini',
             'awk', 'shell', 'shellmini', 'fstab', 'yacc', 'pipe', 'mbox',
-            'error', 'lua', 'lily', 'forth', 'ebnf',
+            'error', 'lua', 'lily', 'forth', 'ebnf', 'colortest',
         )
         for name in names:
             exec("import mode.%s; mode.%s.install(self)" % (name, name))