diff --git a/xorriso/iso_manip.c b/xorriso/iso_manip.c
index af7b1ee4..efe3da3a 100644
--- a/xorriso/iso_manip.c
+++ b/xorriso/iso_manip.c
@@ -365,7 +365,7 @@ int Xorriso_add_tree(struct XorrisO *xorriso, IsoDir *dir,
  char *name, *img_name, *srcpt, *stbuf_src= "";
  struct stat stbuf, hstbuf;
  dev_t dir_dev;
- struct LinkiteM *own_link_stack;
+ struct LinkiteM *own_link_stack = NULL;
  char *sfe= NULL, *sfe2= NULL;
  char *disk_path= NULL, *img_path= NULL, *link_target= NULL;
 
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 64569e48..c8886ea4 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2019.08.13.160439"
+#define Xorriso_timestamP "2019.08.13.161913"