1 files changed, 1 insertions, 0 deletions
diff --git a/liberror.h b/liberror.h
index 7b5176a..f4b2b41 100644
--- a/liberror.h
+++ b/liberror.h
@@ -35,6 +35,7 @@ union liberror_details {
 		void *data;
 		void (*free_data)(void *);
 		void *(*copy_data)(void *);
+		void (*print_data)(void *, FILE *, const char *);
 	} user;
 
 	/**