diff --git a/src/win/fs.c b/src/win/fs.c
index 4fc13b04..314a3543 100644
--- a/src/win/fs.c
+++ b/src/win/fs.c
@@ -31,13 +31,16 @@
 #include <stdio.h>
 
 #include "uv.h"
+
+/* <winioctl.h> requires <windows.h>, included via "uv.h" above, but needs to
+   be included before our "winapi.h", included via "internal.h" below. */
+#include <winioctl.h>
+
 #include "internal.h"
 #include "req-inl.h"
 #include "handle-inl.h"
 #include "fs-fd-hash-inl.h"
 
-#include <winioctl.h>
-
 
 #define UV_FS_FREE_PATHS         0x0002
 #define UV_FS_FREE_PTR           0x0008