diff --git a/packages/addons/tools/system-tools/changelog.txt b/packages/addons/tools/system-tools/changelog.txt
index ec4918cd95..40a4a2c7b2 100644
--- a/packages/addons/tools/system-tools/changelog.txt
+++ b/packages/addons/tools/system-tools/changelog.txt
@@ -1,3 +1,6 @@
+129
+- Fix (set) 7z/7za executable flag
+
 128
 - Add mmc-utils
 
diff --git a/packages/addons/tools/system-tools/package.mk b/packages/addons/tools/system-tools/package.mk
index 7c5b43fef5..bd3f1cf384 100644
--- a/packages/addons/tools/system-tools/package.mk
+++ b/packages/addons/tools/system-tools/package.mk
@@ -3,7 +3,7 @@
 
 PKG_NAME="system-tools"
 PKG_VERSION="1.0"
-PKG_REV="128"
+PKG_REV="129"
 PKG_ARCH="any"
 PKG_LICENSE="GPL"
 PKG_SITE="https://libreelec.tv"
diff --git a/packages/addons/tools/system-tools/source/bin/7z b/packages/addons/tools/system-tools/source/bin/7z
index e77b430999..28a899b2b8 100644
--- a/packages/addons/tools/system-tools/source/bin/7z
+++ b/packages/addons/tools/system-tools/source/bin/7z
@@ -1,2 +1,4 @@
 #!/bin/sh
-exec /storage/.kodi/addons/virtual.system-tools/lib/p7zip/7z "$@"
+file=/storage/.kodi/addons/virtual.system-tools/lib/p7zip/7z
+[ ! -x ${file} ] && chmod +x ${file}
+exec ${file} "$@"
diff --git a/packages/addons/tools/system-tools/source/bin/7za b/packages/addons/tools/system-tools/source/bin/7za
index 659ee61447..34146e5c63 100644
--- a/packages/addons/tools/system-tools/source/bin/7za
+++ b/packages/addons/tools/system-tools/source/bin/7za
@@ -1,2 +1,4 @@
 #!/bin/sh
-exec /storage/.kodi/addons/virtual.system-tools/lib/p7zip/7za "$@"
+file=/storage/.kodi/addons/virtual.system-tools/lib/p7zip/7za
+[ ! -x ${file} ] && chmod +x ${file}
+exec ${file} "$@"
diff --git a/packages/addons/tools/system-tools/source/default.py b/packages/addons/tools/system-tools/source/default.py
index a9ca956181..4655d0c679 100644
--- a/packages/addons/tools/system-tools/source/default.py
+++ b/packages/addons/tools/system-tools/source/default.py
@@ -4,9 +4,16 @@
 import xbmcaddon
 import xbmcgui
 import subprocess
-import os.path
+import re
+import csv
 
-if os.path.exists(os.path.join(xbmcaddon.Addon().getAddonInfo('path'), 'bin/st')):
+with open('/etc/os-release') as stream:
+    contents = stream.read().strip()
+vars = re.findall(r"^[a-zA-Z0-9_]+=.*$", contents, flags=re.MULTILINE)
+reader = csv.reader(vars, delimiter="=")
+osrelease = dict(reader)
+
+if osrelease['LIBREELEC_ARCH'] == 'x11.x86_64' or osrelease['LIBREELEC_ARCH'] == 'Generic-legacy.x86_64':
   yes = xbmcgui.Dialog().yesno('System Tools', 'This is a console-only addon.[CR][CR]Open a terminal window?',nolabel='No',yeslabel='Yes')
   if yes:
     subprocess.Popen(["systemd-run","sh","-c",". /etc/profile;cd;exec st -e sh -l"], shell=False, close_fds=True)