diff --git a/packages/quicktype-core/src/language/TypeScriptZod.ts b/packages/quicktype-core/src/language/TypeScriptZod.ts
index 2ec7df178..d6c2028a0 100644
--- a/packages/quicktype-core/src/language/TypeScriptZod.ts
+++ b/packages/quicktype-core/src/language/TypeScriptZod.ts
@@ -46,6 +46,10 @@ export class TypeScriptZodTargetLanguage extends TargetLanguage {
         return mapping;
     }
 
+		get supportsOptionalClassProperties(): boolean {
+			return true;
+		}
+
     protected makeRenderer(
         renderContext: RenderContext,
         untypedOptionValues: { [name: string]: any }