diff --git a/xorriso/iso_img.c b/xorriso/iso_img.c
index 271c666c..9687e6e2 100644
--- a/xorriso/iso_img.c
+++ b/xorriso/iso_img.c
@@ -426,7 +426,11 @@ int Xorriso_boot_item_status(struct XorrisO *xorriso, char *cat_path,
    }
 
    file_size= 0;
-   ret= Xorriso_iso_lstat(xorriso, bin_path, &stbuf, 2 | 4);
+   if(strncmp(bin_path, "--interval:appended_partition_", 30) == 0) {
+     ret= -1;
+   } else {
+     ret= Xorriso_iso_lstat(xorriso, bin_path, &stbuf, 2 | 4);
+   }
    if(ret == 0) {
      file_size= ((stbuf.st_size / (off_t) 512) +
                 !!(stbuf.st_size % (off_t) 512)) * 512;
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 32df3909..942046a3 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2021.05.25.192155"
+#define Xorriso_timestamP "2021.05.25.195904"