diff --git a/src/index.d.ts b/src/index.d.ts
index 61b7be1..71b20e1 100644
--- a/src/index.d.ts
+++ b/src/index.d.ts
@@ -152,24 +152,24 @@ export type TVProps<
     ? ClassProp<ClassValue>
     : {
         [K in keyof V]?: isTrueOrArray<C["responsiveVariants"]> extends true
-          ? StringToBoolean<keyof V[K]> | TVScreenPropsValue<V, S, K, C>
-          : StringToBoolean<keyof V[K]>;
+          ? StringToBoolean<keyof V[K]> | TVScreenPropsValue<V, S, K, C> | undefined
+          : StringToBoolean<keyof V[K]> | undefined;
       } & ClassProp<ClassValue>
   : V extends undefined
   ? {
       [K in keyof EV]?: isTrueOrArray<C["responsiveVariants"]> extends true
-        ? StringToBoolean<keyof EV[K]> | TVScreenPropsValue<EV, ES, K, C>
-        : StringToBoolean<keyof EV[K]>;
+        ? StringToBoolean<keyof EV[K]> | TVScreenPropsValue<EV, ES, K, C> | undefined
+        : StringToBoolean<keyof EV[K]> | undefined;
     } & ClassProp<ClassValue>
   : {
       [K in keyof V | keyof EV]?: isTrueOrArray<C["responsiveVariants"]> extends true
         ?
-            | (K extends keyof V ? StringToBoolean<keyof V[K]> : never)
-            | (K extends keyof EV ? StringToBoolean<keyof EV[K]> : never)
+            | (K extends keyof V ? StringToBoolean<keyof V[K]> | undefined : never)
+            | (K extends keyof EV ? StringToBoolean<keyof EV[K]> | undefined : never)
             | TVScreenPropsValue<EV & V, S, K, C>
         :
-            | (K extends keyof V ? StringToBoolean<keyof V[K]> : never)
-            | (K extends keyof EV ? StringToBoolean<keyof EV[K]> : never);
+            | (K extends keyof V ? StringToBoolean<keyof V[K]> | undefined : never)
+            | (K extends keyof EV ? StringToBoolean<keyof EV[K]> | undefined : never);
     } & ClassProp<ClassValue>;
 
 export type TVVariantKeys<V extends TVVariants<S>, S extends TVSlots> = V extends Object
diff --git a/tsconfig.json b/tsconfig.json
index c2fb223..05313af 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -3,6 +3,7 @@
   "include": ["**/*.ts"],
   "exclude": ["node_modules", "dist"],
   "compilerOptions": {
+    "types": ["jest"],
     "target": "esnext",
     "module": "esnext",
     "isolatedModules": true,