diff --git a/include/binder/IPCThreadState.h b/include/binder/IPCThreadState.h
index 6e0c01b..b29c266 100644
--- a/include/binder/IPCThreadState.h
+++ b/include/binder/IPCThreadState.h
@@ -22,7 +22,7 @@
 #include <binder/ProcessState.h>
 #include <utils/Vector.h>
 
-#ifdef HAVE_WIN32_PROC
+#if defined(_WIN32)
 typedef  int  uid_t;
 #endif