diff --git a/packages/addons/tools/system-tools/package.mk b/packages/addons/tools/system-tools/package.mk
index 1244df271e..acf953c86b 100644
--- a/packages/addons/tools/system-tools/package.mk
+++ b/packages/addons/tools/system-tools/package.mk
@@ -11,7 +11,7 @@ PKG_URL=""
 PKG_DEPENDS_TARGET="toolchain"
 PKG_SECTION="virtual"
 PKG_SHORTDESC="A bundle of system tools and programs"
-PKG_LONGDESC="This bundle currently includes 7-zip, autossh, bottom, diffutils, dool, dtach, efibootmgr, encfs, evtest, fdupes, file, getscancodes, hddtemp, hd-idle, hid_mapper, htop, i2c-tools, inotify-tools, jq, libgpiod, lm_sensors, lshw, mc, mmc-utils, mtpfs, nmon, patch, pv, screen, smartmontools, stress-ng, tree, unrar, usb-modeswitch and vim."
+PKG_LONGDESC="This bundle currently includes 7-zip, autossh, bottom, diffutils, dool, dtach, efibootmgr, encfs, evtest, fdupes, file, getscancodes, hddtemp, hd-idle, hid_mapper, htop, i2c-tools, inotify-tools, jq, libgpiod, lm_sensors, lshw, mc, mmc-utils, mtpfs, nmon, patch, pv, screen, smartmontools, stress-ng, tmux, tree, unrar, usb-modeswitch and vim."
 
 PKG_IS_ADDON="yes"
 PKG_ADDON_NAME="System Tools"
@@ -49,6 +49,7 @@ PKG_DEPENDS_TARGET="toolchain \
                     sdparm \
                     smartmontools \
                     stress-ng \
+                    tmux \
                     tree \
                     unrar \
                     usb-modeswitch \
@@ -179,6 +180,9 @@ addon() {
     # stress-ng
     cp -P $(get_install_dir stress-ng)/usr/bin/stress-ng ${ADDON_BUILD}/${PKG_ADDON_ID}/bin
 
+    # tmux
+    cp -P $(get_install_dir tmux)/usr/bin/tmux ${ADDON_BUILD}/${PKG_ADDON_ID}/bin
+
     # tree
     cp -P $(get_install_dir tree)/usr/bin/tree ${ADDON_BUILD}/${PKG_ADDON_ID}/bin