diff --git a/setup.py b/setup.py
index 2f940b70a..a9e69bab5 100644
--- a/setup.py
+++ b/setup.py
@@ -44,21 +44,21 @@ if kivy_ios_root is not None:
 
 # -----------------------------------------------------------------------------
 # Cython check
-if platform == 'ios':
+# on python-for-android and kivy-ios, cython usage is external
+have_cython = False
+if platform in ('ios', 'android'):
     print '\nCython check avoided.'
-    have_cython = False
 else:
     try:
         # check for cython
         from Cython.Distutils import build_ext
         have_cython = True
     except ImportError:
-        if platform not in ('android', 'ios'):
-            print '\nCython is missing, its required for compiling kivy !\n\n'
-            raise
-        # on python-for-android, cython usage is external
-        have_cython = False
-        from distutils.command.build_ext import build_ext
+        print '\nCython is missing, its required for compiling kivy !\n\n'
+        raise
+
+if not have_cython:
+    from distutils.command.build_ext import build_ext
 
 
 # -----------------------------------------------------------------------------