diff --git a/products/ASC.Files/Client/src/store/FilesStore.js b/products/ASC.Files/Client/src/store/FilesStore.js
index b50e5e6f71..b7e011a3af 100644
--- a/products/ASC.Files/Client/src/store/FilesStore.js
+++ b/products/ASC.Files/Client/src/store/FilesStore.js
@@ -515,7 +515,7 @@ class FilesStore {
   };
 
   canShareOwnerChange = (item) => {
-    const userId = this.userStore.user.id;
+    const userId = this.userStore.user && this.userStore.user.id;
     const isCommonFolder =
       this.treeFoldersStore.commonFolder &&
       this.selectedFolderStore.pathParts &&