diff --git a/configure.ac b/configure.ac
index 3b715fc3485..8de61ff7f53 100644
--- a/configure.ac
+++ b/configure.ac
@@ -889,6 +889,7 @@ AC_CONFIG_FILES([Makefile
 		 po/wesnoth-sotbe/Makefile.in
 		 po/wesnoth-ei/Makefile.in
 		 po/wesnoth-trow/Makefile.in
+		 po/wesnoth-Two_Brothers/Makefile.in
 		 m4/Makefile
 		 icons/Makefile
 		 src/Makefile