diff --git a/lib/hssystemfileio-win32.c b/lib/hssystemfileio-win32.c
--- a/lib/hssystemfileio-win32.c
+++ b/lib/hssystemfileio-win32.c
@@ -7,8 +7,8 @@
 int
 hssystemfileio_copy_permissions(const wchar_t *old_path, const wchar_t *new_path)
 {
-	struct _stat st;
-	int rc = _wstat(old_path, &st);
+	struct _stat64 st;
+	int rc = _wstat64(old_path, &st);
 	if (rc == -1)
 	{ return rc; }
 	
diff --git a/system-fileio.cabal b/system-fileio.cabal
--- a/system-fileio.cabal
+++ b/system-fileio.cabal
@@ -1,5 +1,5 @@
 name: system-fileio
-version: 0.3.12
+version: 0.3.13
 license: MIT
 license-file: license.txt
 author: John Millikin <jmillikin@gmail.com>
@@ -42,7 +42,7 @@
 source-repository this
   type: git
   location: https://john-millikin.com/code/haskell-filesystem/
-  tag: system-fileio_0.3.12
+  tag: system-fileio_0.3.13
 
 library
   ghc-options: -Wall -O2