diff --git a/pipenv/utils.py b/pipenv/utils.py
index e34aed47..0ccf8c4e 100644
--- a/pipenv/utils.py
+++ b/pipenv/utils.py
@@ -187,7 +187,7 @@ def proper_case(package_name):
     # Hit the simple API.
     r = requests.get('https://pypi.org/simple/{0}'.format(package_name))
     if not r.ok:
-        raise IOError('Unable to find package {0} in PyPI repository.'.format(crayons.green(package_name)))
+        raise IOError('Unable to find package {0} in PyPI repository.'.format(package_name))
 
     # Parse the HTML.
     parser = SimpleHTMLParser()