diff --git a/src/platform_impl/windows/window_state.rs b/src/platform_impl/windows/window_state.rs
index 89b603107..7f9f25d21 100644
--- a/src/platform_impl/windows/window_state.rs
+++ b/src/platform_impl/windows/window_state.rs
@@ -255,6 +255,9 @@ impl WindowFlags {
     if self.contains(WindowFlags::NO_BACK_BUFFER) {
       style_ex |= WS_EX_NOREDIRECTIONBITMAP;
     }
+    if self.contains(WindowFlags::TRANSPARENT) {
+      style_ex |= WS_EX_LAYERED;
+    }
     if self.contains(WindowFlags::CHILD) {
       style |= WS_CHILD; // This is incompatible with WS_POPUP if that gets added eventually.
     }