diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7c30dc3..af1614f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Upcoming...
 
+* Fixes #153 (Thanks @Gui13)
+
 ## 7.4.6 - 2020-11-02
 
 * New feature - upload folder with drag&drop, fixes #25 (Thanks @ahaenggli)
diff --git a/frontend/mixins/shared.js b/frontend/mixins/shared.js
index 64b79ef..5320976 100644
--- a/frontend/mixins/shared.js
+++ b/frontend/mixins/shared.js
@@ -3,6 +3,7 @@ import moment from 'moment'
 import store from '../store.js'
 import api from '../api/api'
 import { Base64 } from 'js-base64'
+import _ from 'lodash'
 
 import english from '../translations/english'
 import spanish from '../translations/spanish'
@@ -142,13 +143,13 @@ const funcs = {
       return this.isText(name) || this.isImage(name)
     },
     isText(name) {
-      return this.hasExtension(name, (store.state.config.editable && store.state.config.editable.length > 0) ? store.state.config.editable : ['.txt'])
+      return this.hasExtension(name, store.state.config.editable)
     },
     isImage(name) {
       return this.hasExtension(name, ['.jpg', '.jpeg', '.gif', '.png', '.bmp', '.svg', '.tiff', '.tif'])
     },
     hasExtension(name, exts) {
-      return (new RegExp('(' + exts.join('|').replace(/\./g, '\\.') + ')$', 'i')).test(name)
+      return !_.isEmpty(exts) && (new RegExp('(' + exts.join('|').replace(/\./g, '\\.') + ')$', 'i')).test(name)
     },
     capitalize(string) {
       return string.charAt(0).toUpperCase() + string.slice(1)