diff --git a/src/widget/multilayerselecttree/multilayerselecttree.combo.js b/src/widget/multilayerselecttree/multilayerselecttree.combo.js
index a0a2d6366..412b1f9e7 100644
--- a/src/widget/multilayerselecttree/multilayerselecttree.combo.js
+++ b/src/widget/multilayerselecttree/multilayerselecttree.combo.js
@@ -174,6 +174,7 @@ BI.MultiLayerSelectTreeCombo = BI.inherit(BI.Widget, {
                         var value = self.trigger.getSearcher().getKeyword();
                         self.combo.setValue([value]);
                         self.combo.hideView();
+                        self.fireEvent(BI.MultiLayerSelectTreeCombo.EVENT_CHANGE);
                     }
                 }]
             },
diff --git a/src/widget/multilayersingletree/multilayersingletree.combo.js b/src/widget/multilayersingletree/multilayersingletree.combo.js
index a161c3c27..4109f6eb7 100644
--- a/src/widget/multilayersingletree/multilayersingletree.combo.js
+++ b/src/widget/multilayersingletree/multilayersingletree.combo.js
@@ -176,6 +176,7 @@ BI.MultiLayerSingleTreeCombo = BI.inherit(BI.Widget, {
                         var value = self.trigger.getSearcher().getKeyword();
                         self.combo.setValue([value]);
                         self.combo.hideView();
+                        self.fireEvent(BI.MultiLayerSingleTreeCombo.EVENT_CHANGE);
                     }
                 }]
             },