diff --git a/src/builders/ZodSchemaClassBuilder.ts b/src/builders/ZodSchemaClassBuilder.ts
index 5c09c25..32d09df 100644
--- a/src/builders/ZodSchemaClassBuilder.ts
+++ b/src/builders/ZodSchemaClassBuilder.ts
@@ -1,9 +1,8 @@
-import { Trait, TraitExpression, TraitExpressionBuilder } from "@thilawyn/traitify-ts"
+import { Trait, TraitExpressionBuilder, expression } from "@thilawyn/traitify-ts"
 import { AbstractClass } from "type-fest"
 import { JsonifiableObject } from "type-fest/source/jsonifiable"
 import { z } from "zod"
 import { ZodSchemaAbstractClass } from "../shapes/ZodSchemaClass"
-import { DejsonifiableZodSchemaObject } from "../traits/DejsonifiableZodSchemaObject"
 import { JsonifiableZodSchemaObject } from "../traits/JsonifiableZodSchemaObject"
 import { ZodSchemaObject } from "../traits/ZodSchemaObject"
 import { StaticMembers } from "../util"
@@ -105,36 +104,18 @@ export class ZodSchemaClassBuilder<
             ) => z.ZodObject<DejsonifySchemaT, DejsonifySchemaUnknownKeys, DejsonifySchemaCatchall, Values, JsonifiedValues>
         },
     ) {
-        const jsonifySchema   = props.jsonifySchema(this.expression.expressionSuperclass.schema)
-        const dejsonifySchema = props.dejsonifySchema(this.expression.expressionSuperclass.schema)
-
-        class JsonifiableSchemas extends (this.expression.expressionSuperclass as AbstractClass<object>) {
-            static readonly jsonifySchema   = jsonifySchema
-                   readonly jsonifySchema   = jsonifySchema
-            static readonly dejsonifySchema = dejsonifySchema
-                   readonly dejsonifySchema = dejsonifySchema
-        }
-
         return new this.constructor(
-            JsonifiableSchemas as unknown as (
-                AbstractClass<
-                    Instance & JsonifiableSchemas,
-
-                    // TODO: for some reason, ConstructorParameters<Super> does not work here. Maybe try to find a fix?
-                    ConstructorParameters<ZodSchemaAbstractClass<Instance, SchemaT, SchemaUnknownKeys, SchemaCatchall, SchemaWithDefaultValuesT, SchemaWithDefaultValuesUnknownKeys, SchemaWithDefaultValuesCatchall, Values, PartialValues>>
-                > &
-                StaticMembers<Super> &
-                StaticMembers<typeof JsonifiableSchemas>
-            ),
-
-            [
-                ...this.expressionTraits,
-                JsonifiableZodSchemaObject,
-                DejsonifiableZodSchemaObject,
-            ],
+            this.expression.expresses(
+                JsonifiableZodSchemaObject(
+                    this.expression.expressionSuperclass.schema,
+                    this.expression.expressionSuperclass.schemaWithDefaultValues,
+                    props.jsonifySchema(this.expression.expressionSuperclass.schema),
+                    props.dejsonifySchema(this.expression.expressionSuperclass.schema),
+                )
+            )
         )
     }
 }
 
 
-export const zodSchemaClass = new ZodSchemaClassBuilder(TraitExpression.NullSuperclass, [])
+export const zodSchemaClass = new ZodSchemaClassBuilder(expression)
diff --git a/src/tests.ts b/src/tests.ts
index e272e30..296e483 100644
--- a/src/tests.ts
+++ b/src/tests.ts
@@ -18,6 +18,15 @@ const exp = zodSchemaClass
             id: s.shape.id.default(-1n),
         }),
     })
+    .jsonifiable({
+        jsonifySchema: s => s.extend({
+
+        }),
+
+        dejsonifySchema: s => s.extend({
+
+        }),
+    })
     .expression
     .expresses(MobXObservableZodSchemaObject)
     .build()