diff --git a/src/option.h b/src/option.h
index c282da3..90c0508 100644
--- a/src/option.h
+++ b/src/option.h
@@ -1152,6 +1152,8 @@
 #endif
     , WV_SCBIND
     , WV_SCROLL
+    , WV_SISO
+    , WV_SO
 #ifdef FEAT_SPELL
     , WV_SPELL
 #endif