diff --git a/docker/lerobot-gpu-dev/Dockerfile b/docker/lerobot-gpu-dev/Dockerfile
index a2f0e42a..e5c7d454 100644
--- a/docker/lerobot-gpu-dev/Dockerfile
+++ b/docker/lerobot-gpu-dev/Dockerfile
@@ -11,7 +11,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     nano vim less util-linux \
     htop atop nvtop \
     sed gawk grep curl wget \
-    tcpdump sysstat screen \
+    tcpdump sysstat screen tmux \
     libglib2.0-0 libgl1-mesa-glx libegl1-mesa ffmpeg \
     python${PYTHON_VERSION} python${PYTHON_VERSION}-venv \
     && apt-get clean && rm -rf /var/lib/apt/lists/*