1 files changed, 3 insertions, 0 deletions
diff --git a/src/data.h b/src/data.h
index 235517b..2164b5a 100644
--- a/src/data.h
+++ b/src/data.h
@@ -276,4 +276,7 @@ extern int rp_honour_normal_map;
 /* Keep track of X11 error messages. */
 extern char *rp_error_msg;
 
+/* Number sets for windows. */
+extern struct numset *rp_window_numset;
+
 #endif /* _RATPOISON_DATA_H */