diff --git a/HISTORY.md b/HISTORY.md
index bde4cff25..f6b750ec3 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -5,6 +5,7 @@
 - Added support for `.aiderignore` file, which instructs aider to ignore parts of the git repo.
 - `/run` and `/git` now accept full shell commands, like: `/run (cd subdir; ls)`
 - New `--commit` cmd line arg, which just commits all pending changes with a sensible commit message geneated by gpt-3.5.
+- Added universal ctags to the [aider docker image](https://aider.chat/docs/docker.html)
 
 ### v0.14.2
 
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 62ca2c262..c2889f319 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,7 +1,7 @@
 FROM python:3.10-slim
 COPY . /aider
 RUN apt-get update && \
-    apt-get install --no-install-recommends -y git && \
+    apt-get install --no-install-recommends -y git universal-ctags && \
     rm -rf /var/lib/apt/lists/* && \
     pip install --no-cache-dir /aider && \
     rm -rf /aider
diff --git a/docs/docker.md b/docs/docker.md
index 4f6221e07..4ad8d8e3b 100644
--- a/docs/docker.md
+++ b/docs/docker.md
@@ -5,7 +5,7 @@ You can run aider via docker without doing any local installation, like this:
 
 ```
 docker pull paulgauthier/aider
-docker run -it --volume `pwd`:/app paulgauthier/aider --openai-api-key $OPENAI_API_KEY [...other aider args...]
+docker run -it --volume $(pwd):/app paulgauthier/aider --openai-api-key $OPENAI_API_KEY [...other aider args...]
 ```
 
 You should run the above commands from the root of your git repo,
diff --git a/hello.py b/hello.py
deleted file mode 100644
index e69de29bb..000000000