diff --git a/setup.py b/setup.py
index 00a148bc0..b6a08980e 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@ if platform.machine() == "i386" or platform.machine() == "i686":
 elif platform.machine() == "x86_64" or platform.machine() == "amd64":
 	print "64bit x86_64 system detected"
 	ARCH = "x64"
-elif platform.processor() == "powerpc":
+elif platform.machine() == "powerpc":
 	print "PowerPC system detected"
 	ARCH = "ppc"
 else: