diff --git a/tools/gtk4builder.its b/tools/gtk4builder.its
index 689ef0d216..a6664771ae 100644
--- a/tools/gtk4builder.its
+++ b/tools/gtk4builder.its
@@ -3,8 +3,9 @@
            xmlns:gt="https://www.gnu.org/s/gettext/ns/its/extensions/1.0"
            version="2.0">
   <its:translateRule selector="/interface" translate="no"/>
-  <its:translateRule selector="/interface//*[@translatable = 'yes']"
-                     translate="yes"/>
+  <its:translateRule selector="/interface//*[@translatable = 'yes']" translate="yes"/>
+  <its:translateRule selector="/interface//*[@translatable = 'true']" translate="yes"/>
+  <its:translateRule selector="/interface//*[@translatable = '1']" translate="yes"/>
 
   <!-- The 'comment' attribute should be extracted as a translator comment.  -->
   <its:locNoteRule selector="/interface//*[@comments]"