diff --git a/src/index.tsx b/src/index.tsx
index 6786927..c673cb8 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -36,9 +36,9 @@ const Switch = React.forwardRef<HTMLButtonElement, SwitchProps>((props, ref) =>
   React.useEffect(() => {
     const { autoFocus, disabled } = props;
     if (autoFocus && !disabled) {
-      focus();
+      (mergedRef.current as any).focus();
     }
-  }, [props.autoFocus, props.disabled]);
+  }, [props.autoFocus]);
 
   React.useEffect(() => {
     if ('checked' in props) {