1 files changed, 1 insertions, 1 deletions
diff --git a/setup.py b/setup.py
index 71c43421..bad1c048 100644
--- a/setup.py
+++ b/setup.py
@@ -110,7 +110,7 @@ if sys.platform.startswith('java'):
     # Jython can't compile C extensions
     compile_extension = False
 
-if hasattr(sys, "pypy_version_info"):
+if '__pypy__' in sys.builtin_module_names:
     # Pypy can't compile C extensions
     compile_extension = False