diff --git a/packages/fineui/src/base/combination/group.virtual.js b/packages/fineui/src/base/combination/group.virtual.js
index b7e8ce938..44e45e573 100644
--- a/packages/fineui/src/base/combination/group.virtual.js
+++ b/packages/fineui/src/base/combination/group.virtual.js
@@ -68,7 +68,7 @@ export class VirtualGroup extends Widget {
                             el: extend(
                                 {
                                     ref: _ref => {
-                                        if (isKey(btMap[el.value])) {
+                                        if (isKey(el.value)) {
                                             btMap[el.value] = _ref;
                                         }
                                     },