diff --git a/reactos/include/ndk/extypes.h b/reactos/include/ndk/extypes.h
index 8656815f4fb..b94c5ee5c4c 100644
--- a/reactos/include/ndk/extypes.h
+++ b/reactos/include/ndk/extypes.h
@@ -422,8 +422,7 @@ typedef struct _EX_PUSH_LOCK
 //
 // Executive Pushlock Wait Block
 //
-__ALIGNED(16)
-typedef struct _EX_PUSH_LOCK_WAIT_BLOCK
+typedef __ALIGNED(16) struct _EX_PUSH_LOCK_WAIT_BLOCK
 {
     union
     {