diff --git a/Dockerfile b/Dockerfile
index 96b34c887..c278fb6c1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM ubuntu:14.04
 MAINTAINER Frederic Guillot <fred@kanboard.net>
 
-RUN apt-get update && apt-get install -y apache2 php5 php5-sqlite git curl && apt-get clean
+RUN apt-get update && apt-get install -y apache2 php5 php5-gd php5-sqlite git curl && apt-get clean
 RUN echo "ServerName localhost" >> /etc/apache2/apache2.conf
 RUN curl -sS https://getcomposer.org/installer | php -- --filename=/usr/local/bin/composer
 RUN cd /var/www && git clone https://github.com/fguillot/kanboard.git