diff --git a/pal/inc/pal.h b/pal/inc/pal.h
index a68a6e65afe..20ca7a80d8e 100644
--- a/pal/inc/pal.h
+++ b/pal/inc/pal.h
@@ -2498,7 +2498,8 @@ typedef struct _M128U {
 } M128U, *PM128U;
 
 // Same as _M128U but aligned to a 16-byte boundary
-typedef DECLSPEC_ALIGN(16) M128U M128A, *PM128A;
+typedef DECLSPEC_ALIGN(16) M128U M128A;
+typedef M128A *PM128A;
 
 typedef struct _XMM_SAVE_AREA32 {
     WORD   ControlWord;