diff --git a/app/logical/file_methods.rb b/app/logical/file_methods.rb
index fe3717e08..5f98e1a6a 100644
--- a/app/logical/file_methods.rb
+++ b/app/logical/file_methods.rb
@@ -81,7 +81,7 @@ module FileMethods
         "gif"
       when "image/png"
         "png"
-      when "video/webm", "audio/webm"
+      when "video/webm"
         "webm"
       when "video/mp4"
         "mp4"