diff --git a/src/user.zig b/src/user.zig
index 66a7158..e4b9313 100644
--- a/src/user.zig
+++ b/src/user.zig
@@ -48,13 +48,11 @@ pub const UserWriter = struct {
     const fromUserErr = error{InvalidRecord};
 
     pub fn downCast(comptime T: type, n: u64) fromUserErr!T {
-        if (std.math.cast(T, n)) |result| {
-            return result;
-        } else |err| switch (err) {
+        return std.math.cast(T, n) catch |err| switch (err) {
             error.Overflow => {
                 return error.InvalidRecord;
             },
-        }
+        };
     }
 
     pub fn appendUser(self: *UserWriter, user: User) !void {