diff --git a/po/Makefile.in.in b/po/Makefile.in.in
index 89eb4e23c..214c08208 100644
--- a/po/Makefile.in.in
+++ b/po/Makefile.in.in
@@ -71,7 +71,7 @@ UPDATEPOFILES = @UPDATEPOFILES@
 DUMMYPOFILES = @DUMMYPOFILES@
 DISTFILES.common = Makefile.in.in remove-potcdate.sin \
 $(DISTFILES.common.extra1) $(DISTFILES.common.extra2) $(DISTFILES.common.extra3)
-DISTFILES = $(DISTFILES.common) Makevars POTFILES.in \
+DISTFILES = $(DISTFILES.common) Makevars POTFILES.in update-po.sh \
 $(POFILES) $(GMOFILES) \
 $(DISTFILES.extra1) $(DISTFILES.extra2) $(DISTFILES.extra3)