diff --git a/ulid.zig b/ulid.zig
index f97eedd518fc1044b04c88f5c27c5fc64d9aa792..848c07020822bfd83869d0b98b07aebe697c0686 100644
--- a/ulid.zig
+++ b/ulid.zig
@@ -36,6 +36,8 @@ pub const ULID = struct {
 
     pub const BaseType = string;
 
+    usingnamespace extras.StringerJsonStringifyMixin(@This());
+
     pub fn parse(alloc: std.mem.Allocator, value: BaseType) !ULID {
         if (value.len != 26) return error.Ulid;
         return ULID{