diff --git a/src/ExportOptions.py b/src/ExportOptions.py
index 683cdf317..d73858689 100644
--- a/src/ExportOptions.py
+++ b/src/ExportOptions.py
@@ -142,9 +142,9 @@ class WriterOptionBox(object):
         
         full_database_row = gtk.HBox()
         full_database_row.pack_start(gtk.Label("Unfiltered Family Tree:"), False)
-        button = gtk.Button(
-            ngettext("%d Person", "%d People", 
-                     len(self.dbstate.db.get_person_handles())))
+        people_count = len(self.dbstate.db.get_person_handles())
+        button = gtk.Button(ngettext("%d Person", "%d People", people_count) % 
+                            people_count)
         button.set_tooltip_text(_("Click to see preview of unfiltered data"))
         button.set_size_request(100, -1)
         button.connect("clicked", self.show_preview_data)
@@ -283,9 +283,7 @@ class WriterOptionBox(object):
         Build a frame for a proxy option. proxy_name is a string.
         """
         # Make a box and put the option in it:
-        button = gtk.Button(
-            ngettext("%d Person", "%d People", 
-                     0))
+        button = gtk.Button(ngettext("%d Person", "%d People", 0) % 0)
         button.set_size_request(100, -1)
         button.connect("clicked", self.show_preview_data)
         button.proxy_name = proxy_name
@@ -548,9 +546,10 @@ class WriterOptionBox(object):
             if preview:
                 self.proxy_dbase[proxy_name] = dbase
                 self.preview_proxy_button[proxy_name].set_sensitive(1)
+                people_count = len(dbase.get_person_handles())
                 self.preview_proxy_button[proxy_name].set_label(
-                    ngettext("%d Person", "%d People", 
-                             len(dbase.get_person_handles())))
+                    ngettext("%d Person", "%d People", people_count) %
+                    people_count)
         return dbase
 
     def apply_proxy(self, proxy_name, dbase, progress=None):