diff --git a/Dockerfile b/Dockerfile
index 3b91879..7f32dc5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -159,8 +159,7 @@
     echo "export ROS_PACKAGE_PATH=\${ROS_PACKAGE_PATH}:/home/ubuntu/catkin_ws" >> ~/.bashrc && \
     echo "export ROS_WORKSPACE=/home/ubuntu/catkin_ws" >> ~/.bashrc && \
     echo "alias cm='cd ~/catkin_ws;catkin build'" >> ~/.bashrc && \
-    echo "alias cs='cd ~/catkin_ws/src'" >> ~/.bashrc && \
-    echo "export NAOqi_DIR=/home/ubuntu/naoqi-sdk-2.5.5.5-linux64" >> ~/.bashrc
+    echo "alias cs='cd ~/catkin_ws/src'" >> ~/.bashrc 
 
 RUN apt-get update && \
     apt-get upgrade -y && \
@@ -191,13 +190,12 @@
 RUN tar -xvzf /home/ubuntu/pynaoqi-python2.7-2.5.5.5-linux64.tar.gz -C /home/ubuntu/ && \
     rm /home/ubuntu/pynaoqi-python2.7-2.5.5.5-linux64.tar.gz && \
     tar -xvzf /home/ubuntu/naoqi-sdk-2.5.5.5-linux64.tar.gz -C /home/ubuntu/ && \
-    rm /home/ubuntu/naoqi-sdk-2.5.5.5-linux64.tar.gz
-
-RUN echo "export PYTHONPATH=\${PYTHONPATH}:/home/ubuntu/naoqi-sdk-2.5.5.5-linux64/lib" >> ~/.bashrc && \
-    echo "export PYTHONPATH=\${PYTHONPATH}:/home/ubuntu/pynaoqi-python2.7-2.5.5.5-linux64/lib/python2.7/site-packages" >> ~/.bashrc
+    rm /home/ubuntu/naoqi-sdk-2.5.5.5-linux64.tar.gz && \
+    echo "export PYTHONPATH=\${PYTHONPATH}:/home/ubuntu/naoqi-sdk-2.5.5.5-linux64/lib" >> ~/.bashrc && \
+    echo "export PYTHONPATH=\${PYTHONPATH}:/home/ubuntu/pynaoqi-python2.7-2.5.5.5-linux64/lib/python2.7/site-packages" >> ~/.bashrc && \
+    echo "export NAOqi_DIR=/home/ubuntu/naoqi-sdk-2.5.5.5-linux64" >> ~/.bashrc
 
 COPY ./scripts/startup.sh /startup.sh
 COPY ./scripts/connectPEPPER.sh /home/ubuntu/connectPEPPER.sh
 COPY ./scripts/pepper.rviz /home/ubuntu/pepper.rviz
 COPY ./scripts/launchdemo.txt /home/ubuntu/launchdemo.txt
-