diff --git a/app/partials/error_modal.html b/app/partials/error_modal.html
index 46c3533e..abd01e37 100644
--- a/app/partials/error_modal.html
+++ b/app/partials/error_modal.html
@@ -40,6 +40,9 @@
       <span ng-switch-when="PHOTO_INVALID_DIMENSIONS">
         The photo dimensions are invalid, please select another file.
       </span>
+      <span ng-switch-when="VIDEO_EXT_INVALID">
+        The video file extension is invalid or unsupported, please select another file.
+      </span>
       <span ng-switch-when="PHOTO_CROP_SIZE_SMALL">
         The photo you provided is too small.
       </span>