diff --git a/src/proto.h b/src/proto.h
index 091e093..f04ba05 100644
--- a/src/proto.h
+++ b/src/proto.h
@@ -207,6 +207,7 @@
 # include "textobject.pro"
 # include "textformat.pro"
 # include "time.pro"
+# include "tuple.pro"
 # include "typval.pro"
 # include "ui.pro"
 # include "undo.pro"