diff --git a/roles/oracle-db-preinstall/vars/RedHat_8.yml b/roles/oracle-db-preinstall/vars/RedHat_8.yml
index e2f1f18..51c150e 100644
--- a/roles/oracle-db-preinstall/vars/RedHat_8.yml
+++ b/roles/oracle-db-preinstall/vars/RedHat_8.yml
@@ -91,6 +91,7 @@
    - smartmontools
    - sysstat
    - tar
+   - tmux
    - tree
    - unixODBC
    - unixODBC-devel