diff --git a/mccabe.py b/mccabe.py
index c0cda75..3ab390c 100644
--- a/mccabe.py
+++ b/mccabe.py
@@ -291,8 +291,7 @@ def get_code_complexity(code, threshold=7, filename='stdin'):
 
 def get_module_complexity(module_path, threshold=7):
     """Returns the complexity of a module"""
-    with open(module_path, "rU") as mod:
-        code = mod.read()
+    code = _read(module_path)
     return get_code_complexity(code, threshold, filename=module_path)
 
 
diff --git a/test_mccabe.py b/test_mccabe.py
index f485463..b53db6a 100644
--- a/test_mccabe.py
+++ b/test_mccabe.py
@@ -229,6 +229,9 @@ class _options(object):
         mccabe.McCabeChecker.parse_options(options)
         self.assertEqual(16, mccabe.McCabeChecker.max_complexity)
 
+    def test_get_module_complexity(self):
+        self.assertEqual(0, mccabe.get_module_complexity("mccabe.py"))
+
 
 if __name__ == "__main__":
     unittest.main()