diff --git a/guake/simplegladeapp.py b/guake/simplegladeapp.py

index 22d45a2..92ab76d 100644

--- a/guake/simplegladeapp.py

+++ b/guake/simplegladeapp.py

@@ -30,7 +30,7 @@ import tokenize

 class SimpleGladeApp:

-    def __init__(self, path, root=None, domain=None):

+    def __init__(self, path, root=None, domain='guake'):

         """

         Load a glade file specified by glade_filename, using root as

         root widget and domain as the domain for translations.

@@ -61,6 +61,7 @@ class SimpleGladeApp:

         self.glade = None

         self.builder = Gtk.Builder()

+        self.builder.set_translation_domain(domain)

         self.builder.add_from_file(self.glade_path)

         if root: