diff --git a/src/sdl3.zig b/src/sdl3.zig
index d30e395..7e8e07f 100644
--- a/src/sdl3.zig
+++ b/src/sdl3.zig
@@ -1771,7 +1771,7 @@ pub const Event = extern union {
     render: RenderEvent,
     drop: DropEvent,
     clipboard: ClipboardEvent,
-    _: u128, // padding
+    _: [128]u8, // padding
 };
 
 /// Pump the event loop, gathering events from the input devices.