diff --git a/gramps/plugins/lib/libnarrate.py b/gramps/plugins/lib/libnarrate.py
index 75ac4057c..4a145839c 100644
--- a/gramps/plugins/lib/libnarrate.py
+++ b/gramps/plugins/lib/libnarrate.py
@@ -1996,7 +1996,7 @@ class Narrator(object):
                 spouse_name = name_display.display(spouse)
         else:
             # not all families have a spouse.
-            spouse_name = _("Unknown")
+            spouse_name = self.__translate_text("Unknown") # not: _("Unknown")
 
         if event:
             if self.__use_fulldate :