diff --git a/src/utils/fileUtils.js b/src/utils/fileUtils.js
index e8a931c0e..2938366c5 100644
--- a/src/utils/fileUtils.js
+++ b/src/utils/fileUtils.js
@@ -93,8 +93,8 @@ const sortCompare = function(fileInfo1, fileInfo2, key, asc = true) {
 
 	// finally sort by name
 	return asc
-		? fileInfo1[key]?.localeCompare(fileInfo2[key], OC.getLanguage()) || 1
-		: -fileInfo1[key]?.localeCompare(fileInfo2[key], OC.getLanguage()) || -1
+		? fileInfo1[key]?.toString()?.localeCompare(fileInfo2[key].toString(), OC.getLanguage()) || 1
+		: -fileInfo1[key]?.toString()?.localeCompare(fileInfo2[key].toString(), OC.getLanguage()) || -1
 }
 
 const genFileInfo = function(obj) {