diff --git a/xorriso/emulators.c b/xorriso/emulators.c
index 98cfd862..70d17096 100644
--- a/xorriso/emulators.c
+++ b/xorriso/emulators.c
@@ -1852,11 +1852,14 @@ rr_reloc_dir:;
          Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
          i+= count;
          goto problem_handler_2;
-       } else
-         goto is_pathspec_2;
+       } else {
+         sprintf(xorriso->info_text, "-as %s: Unrecognized option %s",
+                 whom, Text_shellsafe(argv[i], sfe, 0));
+         Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
+         goto problem_handler_2;
+       }
      }
    } else {
-is_pathspec_2:;
      /* implementing mkisofs tendency to map single-path pathspecs to / */
      if((!xorriso->allow_graft_points) || 
         Fileliste__target_source_limit(argv[i], '=', &ept, 0)<=0) {
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index a9d30875..2637e0b3 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2012.04.25.191110"
+#define Xorriso_timestamP "2012.04.28.161532"