diff --git a/on-boot-script/dpkg-build-files/debian/postrm b/on-boot-script/dpkg-build-files/debian/postrm
index 65f68ec..31cad44 100755
--- a/on-boot-script/dpkg-build-files/debian/postrm
+++ b/on-boot-script/dpkg-build-files/debian/postrm
@@ -21,7 +21,7 @@ set -e
 
 case "$1" in
     purge|remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
-	    # reserved for future use
+	    /sbin/ssh-proxy rm /mnt/data/on_boot.sh
 	    true
     ;;
 
diff --git a/on-boot-script/dpkg-build-files/debian/preinst b/on-boot-script/dpkg-build-files/debian/preinst
index bf46754..196297d 100755
--- a/on-boot-script/dpkg-build-files/debian/preinst
+++ b/on-boot-script/dpkg-build-files/debian/preinst
@@ -16,7 +16,7 @@ set -e
 
 case "$1" in
     install|upgrade)
-	    # reserved for future use
+	    /sbin/ssh-proxy rm /mnt/data/on_boot.sh
 	    true
     ;;
 
diff --git a/on-boot-script/dpkg-build-files/udm-boot.service b/on-boot-script/dpkg-build-files/udm-boot.service
index f54dc3e..90de7b8 100644
--- a/on-boot-script/dpkg-build-files/udm-boot.service
+++ b/on-boot-script/dpkg-build-files/udm-boot.service
@@ -4,7 +4,7 @@ After=network.target
 
 [Service]
 Type=oneshot
-ExecStart=/sbin/ssh-proxy 'mkdir -p /mnt/data/on_boot.d && find -L /mnt/data/on_boot.d -mindepth 1 -maxdepth 1 -type f -print0 | sort -z | xargs -0 -r -n 1 -- sh -c '\''if test -x "$0"; then echo "%n: running $0"; "$0"; else case "$0" in *.sh) echo "%n: sourcing $0"; . "$0";; *) echo "%n: ignoring $0";; esac; fi'\'
+ExecStart=/sbin/ssh-proxy 'mkdir -p /mnt/data/on_boot.d && find -L /mnt/data/on_boot.d -iname "*.sh" -mindepth 1 -maxdepth 1 -type f -print0 | sort -z | xargs -0 -r -n 1 -- sh -c '\''if test -x "$0"; then echo "%n: running $0"; "$0"; else case "$0" in *.sh) echo "%n: sourcing $0"; . "$0";; *) echo "%n: ignoring $0";; esac; fi'\'
 RemainAfterExit=true
 
 [Install]