diff --git a/packages/types/src/interfaces/contracts/runtime.ts b/packages/types/src/interfaces/contracts/runtime.ts
index b2f3a4d3b3..4344518e40 100644
--- a/packages/types/src/interfaces/contracts/runtime.ts
+++ b/packages/types/src/interfaces/contracts/runtime.ts
@@ -72,7 +72,7 @@ export const runtime: DefinitionsCall = {
             },
             {
               name: 'code',
-              type: 'Bytes'
+              type: 'CodeSource'
             },
             {
               name: 'data',