diff --git a/reactos/hal/hal.pspec b/reactos/hal/hal.pspec
index 572425b2767..68060f1e293 100644
--- a/reactos/hal/hal.pspec
+++ b/reactos/hal/hal.pspec
@@ -1,4 +1,5 @@
 #include "include/reactos/msvctarget.h"
+#undef i386
 
 #ifdef _M_ARM
 @ fastcall ExAcquireFastMutex(ptr)