1 files changed, 2 insertions, 1 deletions
diff --git a/examples/hello-world.rs b/examples/hello-world.rs
index fb15d85..9fe521c 100644
--- a/examples/hello-world.rs
+++ b/examples/hello-world.rs
@@ -1,4 +1,5 @@
 use std::ffi::CString;
+use std::ptr::null_mut;
 
 use shit_wx_sys::*;
 
@@ -12,7 +13,7 @@ fn main() {
             (&message) as *const wxString,
             (&message) as *const wxString,
             (wxOK as i32) | wxGeometryCentre_wxCENTER,
-            NULL as *mut wxWindow,
+            null_mut(),
             wxDefaultCoord,
             wxDefaultCoord,
         );