diff --git a/Dockerfile b/Dockerfile
index 09da268..524a2c5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -28,6 +28,7 @@ COPY . /
 RUN git clone https://git.strongds.hu/mrtoth/zshrc.git ~/zshrc                                  &&\
     sh -c "$(curl -fsSL https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh)" &&\
     ln -sf ~/zshrc/rc ~/.zshrc                                                                  &&\
+    echo 'export PROMPT="${PROMPT}(${fg[red]}debian${reset_color}) "' >> ~/zshrc/rc             &&\
     git clone https://github.com/zsh-users/zsh-syntax-highlighting.git \
     ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-syntax-highlighting                          &&\
     chsh -s /bin/zsh