diff --git a/src/structs.h b/src/structs.h
index 97601af..3f0a948 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -1641,6 +1641,9 @@
 #ifdef FEAT_PERSISTENT_UNDO
     int		b_p_udf;	/* 'undofile' */
 #endif
+#ifdef FEAT_LISP
+    char_u	*b_p_lw;	/* 'lispwords' local value */
+#endif
 
     /* end of buffer options */