diff --git a/setup.py b/setup.py
index a71967f2..640c900a 100755
--- a/setup.py
+++ b/setup.py
@@ -181,7 +181,7 @@ def get_output(*args, **kwargs):
             os.environ['PATH'] += os.pathsep + os.path.dirname(main_lib)
     elif main_lib is None:
         for opt in libraries:
-            if opt.startswith('gssapi'):
+            if 'gssapi' in opt:
                 if os.name == 'nt':
                     main_lib = '%s.dll' % opt
                     if winkrb_path: