diff --git a/gcc/closures.c b/gcc/closures.c
index c0ee068..f12013e 100644
--- a/gcc/closures.c
+++ b/gcc/closures.c
@@ -108,7 +108,7 @@
 #include <fcntl.h>
 #include <errno.h>
 #ifndef _MSC_VER
-#include <unistd.h>
+//#include <unistd.h>
 #endif
 #include <string.h>
 #include <stdio.h>
diff --git a/libffi.nim b/libffi.nim
index 3533c9e..7ca481c 100644
--- a/libffi.nim
+++ b/libffi.nim
@@ -10,8 +10,14 @@
 {.deadCodeElim: on.}
 
 when defined(windows):
+  import os
   # on Windows we don't use a DLL but instead embed libffi directly:
-  {.pragma: mylib, header: r"ffi.h".}
+
+  const thisPath = currentSourcePath.parentDir
+  const flag = "-I" & (thisPath / "common") & " -I" & thisPath
+  {.passC: flag.}
+
+  {.pragma: mylib, header: r"common/ffi.h".}
 
   #{.compile: r"common\malloc_closure.c".}
   {.compile: r"common\raw_api.c".}
diff --git a/libffi.nimble b/libffi.nimble
index 9b128a9..c33a7f7 100644
--- a/libffi.nimble
+++ b/libffi.nimble
@@ -1,9 +1,8 @@
-[Package]
-name          = "libffi"
-version       = "1.0.0"
+# Package
+version       = "1.0.1"
 author        = "Andreas Rumpf"
 description   = "libffi wrapper for Nim."
 license       = "MIT"
 
-[Deps]
-Requires: "nim >= 0.10.0"
+# Dependencies
+requires "nim >= 0.10.0"