diff --git a/bridge/whatsapp/handlers.go b/bridge/whatsapp/handlers.go
index 55aaf868..cc26c1ed 100644
--- a/bridge/whatsapp/handlers.go
+++ b/bridge/whatsapp/handlers.go
@@ -232,6 +232,10 @@ func (b *Bwhatsapp) HandleVideoMessage(message whatsapp.VideoMessage) {
 		return
 	}
 
+	if len(fileExt) == 0 {
+                fileExt = append(fileExt, ".mp4")
+        }
+
 	filename := fmt.Sprintf("%v%v", message.Info.Id, fileExt[0])
 
 	b.Log.Debugf("Trying to download %s with size %#v and type %s", filename, message.Length, message.Type)