diff --git a/src/bindings.ts b/src/bindings.ts
index 3971d9c..54ade84 100644
--- a/src/bindings.ts
+++ b/src/bindings.ts
@@ -64,6 +64,9 @@ export interface IMongoCryptContext {
   get state(): number;
 }
 
+/**
+ * All options that can be provided to a C++ MongoCrypt constructor.
+ */
 export type MongoCryptConstructorOptions = {
   kmsProviders?: Uint8Array;
   schemaMap?: Uint8Array;
@@ -132,7 +135,7 @@ export type ExplicitEncryptionContextOptions = NonNullable<
   Parameters<IMongoCrypt['makeExplicitEncryptionContext']>[1]
 >;
 export type DataKeyContextOptions = NonNullable<Parameters<IMongoCrypt['makeDataKeyContext']>[1]>;
-export type MongoCryptOptions = MongoCryptConstructorOptions;
+export type MongoCryptOptions = Omit<MongoCryptConstructorOptions, 'cryptoCallbacks'>;
 export type MongoCryptErrorWrapper = MongoCryptOptions['errorWrapper'];
 
 // export const
diff --git a/src/index.ts b/src/index.ts
index 0cbba09..72447d6 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -96,10 +96,7 @@ export class MongoCrypt implements IMongoCrypt {
   constructor(options: MongoCryptOptions) {
     // Pass in JS cryptoCallbacks implementation by default.
     // If the Node.js openssl version is supported this will be ignored.
-    this.mc = new mc.MongoCrypt(
-      // @ts-expect-error: intentionally passing in an argument that will throw to preserve existing behavior
-      options == null || typeof options !== 'object' ? undefined : { cryptoCallbacks, ...options }
-    );
+    this.mc = new mc.MongoCrypt({ cryptoCallbacks, ...options });
 
     this.errorWrapper = options.errorWrapper;