diff --git a/.appveyor.yml b/.appveyor.yml
index 8fca2c0c2..308527bd1 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -52,6 +52,12 @@ install:
 build_script:
   # Build the compiled extension
   - "%CMD_IN_ENV% python setup.py build_ext --inplace"
+  - "mkdir corpora\en"
+  - "cd corpora\en"
+  - "wget --no-check-certificate http://wordnetcode.princeton.edu/3.0/WordNet-3.0.tar.gz"
+  - "tar -xzf WordNet-3.0.tar.gz"
+  - "mv WordNet-3.0 wordnet"
+  - "cd ../../"
 
 
 test_script:
diff --git a/setup.py b/setup.py
index e5c984aec..b74f3151e 100644
--- a/setup.py
+++ b/setup.py
@@ -178,7 +178,7 @@ VERSION = '0.94'
 def main(modules, is_pypy):
     language = "cpp"
     includes = ['.', path.join(sys.prefix, 'include')]
-    if sys.platform.startswith('darwin'):
+    if sys.prefix == 'darwin':
         compile_options['other'].append(['-mmacosx-version-min=10.8', '-stdlib=libc++'])
         link_opions['other'].append('-lc++')
     if use_cython: