diff --git a/Dockerfile b/Dockerfile
index 2ac9594e..26847963 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,9 @@
 FROM debian
 RUN apt-get update
-RUN apt-get install -y default-libmysqlclient-dev
+RUN apt-get install -y default-libmysqlclient-dev gcc
 RUN apt-get install -y postgresql postgresql-contrib libpq-dev python-psycopg2
 RUN apt-get update && apt-get install \
-  -y --no-install-recommends python3 python3-virtualenv
+  -y --no-install-recommends python3 python3-virtualenv python3-dev
 RUN apt-get update && apt-get install libssl-dev
 RUN python3 -m virtualenv --python=/usr/bin/python3 /opt/venv
 COPY ./requirements.txt /usr/src/app/
diff --git a/rowers/templates/embedded_video.html b/rowers/templates/embedded_video.html
index 82d6346b..8bd24edf 100644
--- a/rowers/templates/embedded_video.html
+++ b/rowers/templates/embedded_video.html
@@ -1,4 +1,4 @@
-workout.user{% extends "newbase.html" %}
+{% extends "newbase.html" %}
 {% load staticfiles %}
 {% load rowerfilters %}
 {% load i18n %}