diff --git a/_server/config.json b/_server/config.json
index 9c9888dc..fe6a45a9 100644
--- a/_server/config.json
+++ b/_server/config.json
@@ -1 +1 @@
-{"lastUsed":[],"foldPerCol":50,"folded":false,"editorLastFloorId":"sample0","disableBlocklyReplace":false,"shortcut":{"48":0,"49":0,"50":0,"51":0,"52":0,"53":0,"54":0,"55":0,"56":0,"57":0}}
\ No newline at end of file
+{"lastUsed":[],"foldPerCol":50,"folded":false,"editorLastFloorId":null,"disableBlocklyReplace":false,"shortcut":{"48":0,"49":0,"50":0,"51":0,"52":0,"53":0,"54":0,"55":0,"56":0,"57":0}}
\ No newline at end of file
diff --git a/_server/editor_materialpanel.js b/_server/editor_materialpanel.js
index ea7dcced..ca3713fb 100644
--- a/_server/editor_materialpanel.js
+++ b/_server/editor_materialpanel.js
@@ -39,7 +39,7 @@ editor_materialpanel_wrapper = function (editor) {
             var perCol = parseInt(prompt("请输入折叠素材模式下每列的个数：", "50")) || 0;
             if (perCol > 0) {
                 editor.config.set('foldPerCol', perCol, false);
-                editor.config.set('folded', false, function() {
+                editor.config.set('folded', true, function() {
                     window.location.reload();
                 });
             }