diff --git a/.docker/jazzy.arm64v8.dockerfile b/.docker/jazzy.arm64v8.dockerfile
index 9736acc9..290fba24 100644
--- a/.docker/jazzy.arm64v8.dockerfile
+++ b/.docker/jazzy.arm64v8.dockerfile
@@ -82,14 +82,14 @@ FROM --platform=linux/arm64 woensugchoi/ubuntu-arm-rdp-base:latest
 ARG USER=docker
 
 # Install packages (added for Ardusub)
-ENV DEBIAN_FRONTEND noninteractive
+ENV DEBIAN_FRONTEND=noninteractive
 ENV DEBCONF_NONINTERACTIVE_SEEN=true
 # hadolint ignore=DL3008
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
     python-is-python3 python3-future python3-wxgtk4.0 \
     libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev \
-    rm -rf /var/lib/apt/lists/
+    && rm -rf /var/lib/apt/lists/
 
 # ROS-Gazebo arg
 ARG BRANCH="ros2"