diff --git a/PC/config.c b/PC/config.c
index 4f6f560..f202835 100644
--- a/PC/config.c
+++ b/PC/config.c
@@ -75,7 +75,7 @@
 struct _inittab _PyImport_Inittab[] = {
 
         {"array", initarray},
-#ifdef M_I386
+#ifdef MS_WINDOWS
         {"audioop", initaudioop},
 #endif
         {"binascii", initbinascii},