diff --git a/lib/std/meta.zig b/lib/std/meta.zig
index 8f40d70feded2419a629f4110a4be7ae49af1851..79b0424e96b028a3f7045bc2abdeb699ad427c08 100644
--- a/lib/std/meta.zig
+++ b/lib/std/meta.zig
@@ -854,6 +854,7 @@ pub fn ArgsTuple(comptime Function: type) type {
             .field_type = arg.arg_type.?,
             .default_value = @as(?(arg.arg_type.?), null),
             .is_comptime = false,
+            .alignment = @alignOf(arg.arg_type.?),
         };
     }