diff --git a/mksm b/mksm
old mode 100755
new mode 100644
index 46266ae..0266d0b
--- a/mksm
+++ b/mksm
@@ -1,6 +1,24 @@
 #!/bin/bash
 # Part of SMLinux distribution
+# http://git.pktsurf.in/smlinux
+
 # Package build file generator
+
+# Copyright (c) 2021-22 PktSurf <smlinux@pktsurf.in>
+
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# Exit on any error
 set -e
 
 # Date format