--- a/toolkit/toolkit/global/unknownContentType.ftl
+++ b/toolkit/toolkit/global/unknownContentType.ftl
@@ -4,16 +4,17 @@
 
 unknowncontenttype-settingschange =
     .value =
         { PLATFORM() ->
             [windows] Instellings kan gewysig word in { -brand-short-name } se opsies.
            *[other] Instellings kan gewysig word in { -brand-short-name } se voorkeure.
         }
 unknowncontenttype-intro = U het gekies om te open:
+unknowncontenttype-which-is = en dit is 'n:
 unknowncontenttype-from = van:
 unknowncontenttype-prompt = Wil u hierdie lêer stoor?
 unknowncontenttype-action-question = Wat moet { -brand-short-name } met hierdie lêer doen?
 unknowncontenttype-open-with =
     .label = Open met
     .accesskey = O
 unknowncontenttype-other =
     .label = Ander…