2 files changed, 3 insertions, 3 deletions
diff --git a/appveyor.yml b/appveyor.yml
index 4817dac..5788896 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,6 +1,6 @@
 version: 1.0.{build}
 environment:
-  APPVEYOR: TRUE
+  TESTING_ON_AV: 1
   matrix:
   - TOXENV: py27
   - TOXENV: py35
diff --git a/setup.py b/setup.py
index 6a9b873..fe3a165 100644
--- a/setup.py
+++ b/setup.py
@@ -21,8 +21,8 @@ def missing_files():
 
         FILES = ('cat.exe', 'echo.exe', 'tee.exe', 'false.exe', 'true.exe',
                  'sleep.exe', 'touch.exe')
-        print('APPVEYOR: %s' % os.environ.get('APPVEYOR'))
-        if os.environ.get('APPVEYOR', 'FALSE') != 'TRUE':
+        print('TESTING_ON_AV: %s' % os.environ.get('TESTING_ON_AV'))
+        if 'TESTING_ON_AV' in os.environ:
             FILES = ('libiconv2.dll', 'libintl3.dll') + FILES
 
         missing = []