1 files changed, 2 insertions, 0 deletions
diff --git a/buttress.h b/buttress.h
index e9cff87..a233bdb 100644
--- a/buttress.h
+++ b/buttress.h
@@ -82,6 +82,8 @@ struct paragraph_Tag {
     word *kwtext;		       /* chapter/section indication */
     word *kwtext2;		       /* numeric-only form of kwtext */
     filepos fpos;
+
+    void *private_data; 	       /* for temp use in backends */
 };
 enum {
     para_IM,			       /* index merge */