diff --git a/typings/embedded_io/smbus.d.ts b/typings/embedded_io/smbus.d.ts
index e3fd14438..c1b5222b3 100644
--- a/typings/embedded_io/smbus.d.ts
+++ b/typings/embedded_io/smbus.d.ts
@@ -22,7 +22,7 @@ declare module "embedded:io/smbus" {
   import I2C from "embedded:io/i2c"
 
   class SMBus extends I2C {
-    constructor(options: ConstructorParameters<typeof I2C> & {
+    constructor(options: ConstructorParameters<typeof I2C>[0] & {
       stop?: boolean;
     });
     readUint8(register: number): number;