diff --git a/conftest.py b/conftest.py
index 27fe13b..2f844fd 100644
--- a/conftest.py
+++ b/conftest.py
@@ -1,7 +1,9 @@
 import os
+import subprocess
 import urllib
 import zipfile
-import subprocess
+
+import pytest
 
 VSPEC_URL = 'https://github.com/kana/vim-vspec/archive/1.4.1.zip'
 CACHE_FOLDER = '.cache'
@@ -15,14 +17,15 @@ class IntegrationTestFile(object):
         self.path = path
 
     def run(self):
-        output = subprocess.check_output([VSPEC_RUNNER, '.', VSPEC_FOLDER, self.path])
+        output = subprocess.check_output(
+            [VSPEC_RUNNER, '.', VSPEC_FOLDER, self.path])
         for line in output.splitlines():
             if line.startswith(b'not ok') or line.startswith(b'Error'):
-                print(output.decode('utf-8'))
-                assert False
+                pytest.fail("{} failed:\n{}".format(
+                    self.path, output.decode('utf-8')), pytrace=False)
 
     def __repr__(self):
-        return "<%s: %s>"  % (type(self), self.path)
+        return "<%s: %s>" % (type(self), self.path)
 
 
 def pytest_configure(config):
@@ -36,7 +39,7 @@ def pytest_configure(config):
             dest = os.path.join(CACHE_FOLDER, n)
             destdir = os.path.dirname(dest)
             if not os.path.isdir(destdir):
-              os.makedirs(destdir)
+                os.makedirs(destdir)
             data = z.read(n)
             if not os.path.isdir(dest):
                 with open(dest, 'w') as f:
diff --git a/jedi_vim.py b/jedi_vim.py
index ce52f93..08ccb91 100644
--- a/jedi_vim.py
+++ b/jedi_vim.py
@@ -218,7 +218,7 @@ def goto(is_definition=False, is_related_name=False, no_output=False):
                     echo_highlight("Cannot get the definition of Python keywords.")
                 else:
                     echo_highlight("Builtin modules cannot be displayed (%s)."
-                                   % d.module_path)
+                                   % d.desc_with_module)
             else:
                 if d.module_path != vim.current.buffer.name:
                     result = new_buffer(d.module_path)