diff --git a/lib/minifb/src/minifb.zig b/lib/minifb/src/minifb.zig
index b0511d6..75fb0cc 100644
--- a/lib/minifb/src/minifb.zig
+++ b/lib/minifb/src/minifb.zig
@@ -78,7 +78,7 @@ pub fn Window(comptime TUserData: type) type {
 
         pub fn getUserData(self: Window(TUserData)) ?*TUserData {
             var cData = c.mfb_get_user_data(self.cwin);
-            return @ptrCast(?*TUserData, @alignCast(@alignOf(?*TUserData), cData));
+            return @ptrCast(?*TUserData, @alignCast(@alignOf(TUserData), cData));
         }
 
         pub const ActiveFunc = fn (win: Window(TUserData), isActive: bool) callconv(.C) void;
@@ -102,6 +102,14 @@ test "user data is not null if previously set" {
     try testing.expectEqual(expected, win.getUserData().?.*);
 }
 
+test "also works with smaller user data" {
+    const win = try Window(u8).open("abc", 100, 100, .{});
+    var data: u8 = 42;
+    win.setUserData(&data);
+    const expected: u8 = 42;
+    try testing.expectEqual(expected, win.getUserData().?.*);
+}
+
 pub fn getTargetFPS() u32 {
     return c.mfb_get_target_fps();
 }