diff --git a/assets/css/_forms.scss b/assets/css/_forms.scss
index 02d69702d..ccb4c643d 100644
--- a/assets/css/_forms.scss
+++ b/assets/css/_forms.scss
@@ -61,7 +61,7 @@ label {
     margin: 0 15%;
     &.csv:before {
       // See assets/js/i18nStyle.jsx
-      // content: 'Drop your MP3, WAV, ACC or M4A file here, or click to browse';
+      // content: 'Drop your MP3, WAV, M4A, ACC or MP4 file here, or click to browse';
       text-align: center;
       position: absolute;
       width: 100%;
diff --git a/assets/js/i18nStyle.jsx b/assets/js/i18nStyle.jsx
index e40b36722..500b09fbd 100644
--- a/assets/js/i18nStyle.jsx
+++ b/assets/js/i18nStyle.jsx
@@ -18,7 +18,7 @@ class I18nStyle extends Component<Props> {
   content: '${t("Uploading...")}';
 }
 .dropfile .drop-text.audio:before {
-  content: '${t("Drop your MP3, WAV, ACC or M4A file here, or click to browse")}';
+  content: '${t("Drop your MP3, WAV, M4A, ACC or MP4 file here, or click to browse")}';
 }
 .dropfile.active .drop-text:before {
   content: '${t("Drop your file to start uploading")}';