1 files changed, 7 insertions, 4 deletions
diff --git a/src/nvim/buffer_defs.h b/src/nvim/buffer_defs.h
index dba02a67e8..cc09b7e989 100644
--- a/src/nvim/buffer_defs.h
+++ b/src/nvim/buffer_defs.h
@@ -491,9 +491,10 @@ typedef struct {
   LuaRef on_changedtick;
   LuaRef on_detach;
   bool utf_sizes;
+  bool preview;
 } BufUpdateCallbacks;
 #define BUF_UPDATE_CALLBACKS_INIT { LUA_NOREF, LUA_NOREF, LUA_NOREF, \
-                                    LUA_NOREF, false }
+                                    LUA_NOREF, false, false }
 
 EXTERN int curbuf_splice_pending INIT(= 0);
 
@@ -532,9 +533,11 @@ struct file_buffer {
   // b_fname    is the same as b_sfname, unless ":cd" has been done,
   //            then it is the same as b_ffname (NULL for no name).
   //
-  char_u      *b_ffname;        // full path file name
-  char_u      *b_sfname;        // short file name
-  char_u      *b_fname;         // current file name
+  char_u      *b_ffname;        // full path file name, allocated
+  char_u      *b_sfname;        // short file name, allocated, may be equal to
+                                // b_ffname
+  char_u      *b_fname;         // current file name, points to b_ffname or
+                                // b_sfname
 
   bool file_id_valid;
   FileID file_id;