diff --git a/docker/Dockerfile.io b/docker/Dockerfile.io
index 4e4ae8a7..e18423ec 100644
--- a/docker/Dockerfile.io
+++ b/docker/Dockerfile.io
@@ -22,7 +22,7 @@ ENV DEBIAN_FRONTEND=noninteractive \
 
 ARG UBUNTU_DEPS="libatomic1 curl wget git net-tools iproute2 software-properties-common"
 ARG RUST_DEPS="build-essential"
-ARG DEPS="pv gcc gdb strace upx-ucl less ffmpeg net-tools netcat-openbsd mc far2l iputils-ping vim bat fzf locales sudo command-not-found ncdu aptitude htop btop hexyl"
+ARG DEPS="pv gcc gdb strace upx-ucl less ffmpeg net-tools netcat-openbsd mc far2l iputils-ping vim bat fzf locales sudo command-not-found ncdu aptitude htop btop hexyl tmux"
 ARG PALABRA_DEPS="nvm node rust go deno fasm nvchad rizin yara gdu f4"
 ARG BUN_DEPS="palabra wisdom nupdate version-io redrun superc8 supertape madrun redlint putout renamify-cli runny redfork"