diff --git a/packages/typegen/src/templates/tsDef/types.hbs b/packages/typegen/src/templates/tsDef/types.hbs
index 2cfd0411d9b5..f3fe4ba93651 100644
--- a/packages/typegen/src/templates/tsDef/types.hbs
+++ b/packages/typegen/src/templates/tsDef/types.hbs
@@ -3,3 +3,5 @@
 {{#each items}}
 export * from './{{{this}}}/types.js';
 {{/each}}
+
+export type PHANTOM_GENERATED = 'generated';
diff --git a/packages/types/src/interfaces/types.ts b/packages/types/src/interfaces/types.ts
index caa7c4ac03ee..9891bfc1db21 100644
--- a/packages/types/src/interfaces/types.ts
+++ b/packages/types/src/interfaces/types.ts
@@ -78,3 +78,5 @@ export * from './vesting/types.js';
 export * from './xcm/types.js';
 export * from './xcmPaymentApi/types.js';
 export * from './xcmRuntimeApi/types.js';
+
+export type PHANTOM_GENERATED = 'generated';