diff --git a/packages/remix-server-runtime/serialize.ts b/packages/remix-server-runtime/serialize.ts
index d95a7bf6c79..4a2a8a3a79c 100644
--- a/packages/remix-server-runtime/serialize.ts
+++ b/packages/remix-server-runtime/serialize.ts
@@ -17,21 +17,27 @@ export type SerializeFrom<T> =
 ;
 
 // note: cannot be inlined as logic requires union distribution
-type Serialize<Output> = Output extends TypedDeferredData<infer U>
-  ? // top-level promises
-    {
-      [K in keyof U as K extends symbol
-        ? never
-        : Promise<any> extends U[K]
-        ? K
-        : never]: DeferValue<U[K]>; // use generic to distribute over union
-    } & Jsonify<{
-      // non-promises
-      [K in keyof U as Promise<any> extends U[K] ? never : K]: U[K];
+// prettier-ignore
+type Serialize<Output> =
+  Output extends TypedDeferredData<infer U> ?
+    // top-level promises
+    & {
+      [K in keyof U as
+        K extends symbol ? never :
+        Promise<any> extends U[K] ? K :
+        never
+      ]: DeferValue<U[K]>; // use generic to distribute over union
+    }
+    // non-promises
+    & Jsonify<{
+      [K in keyof U as
+        Promise<any> extends U[K] ? never :
+        K
+      ]: U[K];
     }>
-  : Output extends TypedResponse<infer U>
-  ? Jsonify<U>
-  : Jsonify<Output>;
+  :
+  Output extends TypedResponse<infer U> ? Jsonify<U> :
+  Jsonify<Output>;
 
 // prettier-ignore
 type DeferValue<T> =
diff --git a/packages/remix-server-runtime/typecheck.ts b/packages/remix-server-runtime/typecheck.ts
index eff68677690..7f6ffeab236 100644
--- a/packages/remix-server-runtime/typecheck.ts
+++ b/packages/remix-server-runtime/typecheck.ts
@@ -1,6 +1,6 @@
 // typecheck that expression is assignable to type
-
 export function expectType<T>(_expression: T) {}
+
 // prettier-ignore
 // adapted from https://github.com/type-challenges/type-challenges/blob/main/utils/index.d.ts
 export type Equal<X, Y> =