diff --git a/apps/documenteditor/main/app/controller/Main.js b/apps/documenteditor/main/app/controller/Main.js
index 06d67ec8a..0d57eb143 100644
--- a/apps/documenteditor/main/app/controller/Main.js
+++ b/apps/documenteditor/main/app/controller/Main.js
@@ -1527,7 +1527,7 @@ define([
                     Common.NotificationCenter.on('comments:cleardummy', _.bind(this.onClearDummyComment, this));
                     Common.NotificationCenter.on('comments:showdummy', _.bind(this.onShowDummyComment, this));
 
-                this.appOptions.canChangeCoAuthoring = this.appOptions.isEdit && this.appOptions.canCoAuthoring && !(typeof this.editorConfig.coEditing == 'object' && this.editorConfig.coEditing.change===false);
+                this.appOptions.canChangeCoAuthoring = this.appOptions.isEdit && this.appOptions.canCoAuthoring && !(this.editorConfig.coEditing && typeof this.editorConfig.coEditing == 'object' && this.editorConfig.coEditing.change===false);
 
                 this.loadCoAuthSettings();
                 this.applyModeCommonElements();
diff --git a/apps/presentationeditor/main/app/controller/Main.js b/apps/presentationeditor/main/app/controller/Main.js
index 13bda0005..bd1bd3e18 100644
--- a/apps/presentationeditor/main/app/controller/Main.js
+++ b/apps/presentationeditor/main/app/controller/Main.js
@@ -1179,7 +1179,7 @@ define([
                 this.appOptions.canBrandingExt && this.editorConfig.customization && Common.UI.LayoutManager.init(this.editorConfig.customization.layout);
                 this.editorConfig.customization && Common.UI.FeaturesManager.init(this.editorConfig.customization.features, this.appOptions.canBrandingExt);
 
-                this.appOptions.canChangeCoAuthoring = this.appOptions.isEdit && this.appOptions.canCoAuthoring && !(typeof this.editorConfig.coEditing == 'object' && this.editorConfig.coEditing.change===false);
+                this.appOptions.canChangeCoAuthoring = this.appOptions.isEdit && this.appOptions.canCoAuthoring && !(this.editorConfig.coEditing && typeof this.editorConfig.coEditing == 'object' && this.editorConfig.coEditing.change===false);
 
                 this.loadCoAuthSettings();
                 this.applyModeCommonElements();
diff --git a/apps/spreadsheeteditor/main/app/controller/Main.js b/apps/spreadsheeteditor/main/app/controller/Main.js
index 15870d086..ccecb0279 100644
--- a/apps/spreadsheeteditor/main/app/controller/Main.js
+++ b/apps/spreadsheeteditor/main/app/controller/Main.js
@@ -1276,7 +1276,7 @@ define([
                 this.appOptions.isRestrictedEdit = !this.appOptions.isEdit && this.appOptions.canComments;
 
                 this.appOptions.canChangeCoAuthoring = this.appOptions.isEdit && !(this.appOptions.isEditDiagram || this.appOptions.isEditMailMerge) && this.appOptions.canCoAuthoring &&
-                                                        !(typeof this.editorConfig.coEditing == 'object' && this.editorConfig.coEditing.change===false);
+                                                        !(this.editorConfig.coEditing && typeof this.editorConfig.coEditing == 'object' && this.editorConfig.coEditing.change===false);
 
                 if (!this.appOptions.isEditDiagram && !this.appOptions.isEditMailMerge) {
                     this.appOptions.canBrandingExt = params.asc_getCanBranding() && (typeof this.editorConfig.customization == 'object' || this.editorConfig.plugins);