diff --git a/lark/lexer.py b/lark/lexer.py
index e17895b7..d0339d90 100644
--- a/lark/lexer.py
+++ b/lark/lexer.py
@@ -88,7 +88,7 @@ def __init__(self, tokens, ignore=()):
             try:
                 re.compile(t.pattern.to_regexp())
             except:
-                raise LexError("Cannot compile token: %s: %s" % (t.name, t.pattern))
+                raise LexError("Cannot compile token %s: %s" % (t.name, t.pattern))
 
             width = sre_parse.parse(t.pattern.to_regexp()).getwidth()
             if width[0] == 0:
diff --git a/setup.py b/setup.py
index ae065feb..b2db86de 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@
 setup(
     name = "lark-parser",
     version = __version__,
-    packages = ['lark', 'lark.parsers', 'lark.tools'],
+    packages = ['lark', 'lark.parsers', 'lark.tools', 'lark.grammars'],
 
     requires = [],
     install_requires = [],