diff --git a/src/drivers/iframe-driver.ts b/src/drivers/iframe-driver.ts
index 53c97135..2e5ee097 100644
--- a/src/drivers/iframe-driver.ts
+++ b/src/drivers/iframe-driver.ts
@@ -98,8 +98,8 @@ export class IframeSQLiteDriver extends SqliteLikeBaseDriver {
   protected supportBigInt = false;
 
   constructor(options?: {
-    supportPragmaList: boolean;
-    supportBigInt: boolean;
+    supportPragmaList?: boolean;
+    supportBigInt?: boolean;
   }) {
     super();
     if (options?.supportPragmaList !== undefined) {