diff --git a/src/cpu/cpu.h b/src/cpu/cpu.h
index cf99c0ae1..0e4511530 100644
--- a/src/cpu/cpu.h
+++ b/src/cpu/cpu.h
@@ -293,10 +293,10 @@ typedef struct {
 
 #ifdef USE_NEW_DYNAREC
     uint32_t	old_fp_control, new_fp_control;
-#if defined i386 || defined __i386 || defined __i386__ || defined _X86_
+#if defined i386 || defined __i386 || defined __i386__ || defined _X86_ || defined _M_IX86
     uint16_t	old_fp_control2, new_fp_control2;
 #endif
-#if defined i386 || defined __i386 || defined __i386__ || defined _X86_ || defined __amd64__
+#if defined i386 || defined __i386 || defined __i386__ || defined _X86_ || defined _M_IX86 || defined __amd64__ || defined _M_X64
     uint32_t	trunc_fp_control;
 #endif
 #endif