diff --git a/packages/fineui/src/core/func/array.js b/packages/fineui/src/core/func/array.js
index 98f7d3703..76ce2a132 100644
--- a/packages/fineui/src/core/func/array.js
+++ b/packages/fineui/src/core/func/array.js
@@ -7,7 +7,7 @@ export function pushArray(sArray, array) {
 }
 
 export function pushDistinct(sArray, obj) {
-    if (sArray.indexOf(obj) !== -1) {
+    if (sArray.indexOf(obj) === -1) {
         sArray.push(obj);
     }
 }
diff --git a/packages/fineui/src/fix/fix.js b/packages/fineui/src/fix/fix.js
index 1cd977916..92cba70f8 100644
--- a/packages/fineui/src/fix/fix.js
+++ b/packages/fineui/src/fix/fix.js
@@ -635,7 +635,7 @@ const Observer = (function() {
 
 function protoAugment(target, src, keys) {
     /* eslint-disable no-proto */
-    target.__proto__ = src;
+    Object.setPrototypeOf(target, src);
     /* eslint-enable no-proto */
 }