ci/after_success.py in thermite-0.4.0 vs ci/after_success.py in thermite-0.5.0

@@ -46,8 +46,9 @@
     http = httplib.HTTPSConnection('api.travis-ci.org')
     http.request('POST', '/repo/malept%2Frusty_blank/requests', json.dumps(payload), headers)
     print(http.getresponse().read())
 
 if __name__ == '__main__':
-    if os.environ['TRAVIS_RUBY_VERSION'].startswith('2.3.'):
+    if (os.environ['TRAVIS_OS_NAME'] == 'linux' and
+        os.environ['TRAVIS_RUBY_VERSION'].startswith('2.3.')):
         trigger_appveyor_build()
         trigger_travis_build()