diff --git a/src/win32/ffi.rs b/src/win32/ffi.rs
index 5a8732d4..23859546 100644
--- a/src/win32/ffi.rs
+++ b/src/win32/ffi.rs
@@ -719,6 +719,9 @@ extern "system" {
     pub fn PeekMessageW(lpMsg: *mut MSG, hWnd: HWND, wMsgFilterMin: UINT, wMsgFilterMax: UINT,
         wRemoveMsg: UINT) -> BOOL;
 
+    // http://msdn.microsoft.com/en-us/library/windows/desktop/ms644944(v=vs.85).aspx
+    pub fn PostMessageW(hWnd: HWND, Msg: UINT, wParam: WPARAM, lParam: LPARAM) -> BOOL;
+
     // http://msdn.microsoft.com/en-us/library/windows/desktop/ms644945(v=vs.85).aspx
     pub fn PostQuitMessage(nExitCode: libc::c_int);
 
diff --git a/src/win32/mod.rs b/src/win32/mod.rs
index ee0e2b2a..8be3fdb8 100644
--- a/src/win32/mod.rs
+++ b/src/win32/mod.rs
@@ -239,6 +239,7 @@ impl Window {
 impl Drop for Window {
     fn drop(&mut self) {
         use std::ptr;
+        unsafe { ffi::PostMessageW(self.window, ffi::WM_DESTROY, 0, 0); }
         unsafe { ffi::wgl::MakeCurrent(ptr::null(), ptr::null()); }
         unsafe { ffi::wgl::DeleteContext(self.context); }
         unsafe { ffi::DestroyWindow(self.window); }