diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0195304ec3..54e7855cf4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 # Unreleased
 
+- On Windows, fix bug causing message boxes to appear delayed.
 - On Android, calling `WindowEvent::Focused` now works properly instead of always returning false. 
 - On Windows, fix alt-tab behaviour by removing borderless fullscreen "always on top" flag.
 - On Windows, fix bug preventing windows with transparency enabled from having fully-opaque regions.
diff --git a/src/platform_impl/windows/event_loop.rs b/src/platform_impl/windows/event_loop.rs
index 27af039fb6..37817cb51b 100644
--- a/src/platform_impl/windows/event_loop.rs
+++ b/src/platform_impl/windows/event_loop.rs
@@ -1973,7 +1973,8 @@ unsafe extern "system" fn thread_event_target_callback<T: 'static>(
                 }
             }
 
-            0
+            // Default WM_PAINT behaviour. This makes sure modals and popups are shown immediatly when opening them.
+            commctrl::DefSubclassProc(window, msg, wparam, lparam)
         }
 
         winuser::WM_INPUT_DEVICE_CHANGE => {