diff --git a/po/Makevars b/po/Makevars
index bf6c3b2..eff53e6 100644
--- a/po/Makevars
+++ b/po/Makevars
@@ -8,7 +8,7 @@ subdir = po
 top_builddir = ..
 
 # These options get passed to xgettext.
-XGETTEXT_OPTIONS = --keyword=_ --keyword=N_ --keyword=_q --keyword=Q_ --language=C++ --from-code=utf-8
+XGETTEXT_OPTIONS = --keyword=_ --keyword=N_ --keyword=_q --keyword=Q_ --language=C++ --from-code=utf-8 --boost
 
 # This is the copyright holder that gets inserted into the header of the
 # $(DOMAIN).pot file.  Set this to the copyright holder of the surrounding