diff --git a/README b/README
index eaf52092..4297144e 100644
--- a/README
+++ b/README
@@ -30,7 +30,7 @@ To run pan.do/ra you need to install and setup:
             python-gst0.10 gstreamer0.10-plugins-good gstreamer0.10-plugins-bad \
             postgresql postgresql-contrib rabbitmq-server \
             ffmpeg2theora libav-tools libavcodec-extra-53 \
-            python-ox oxframe imagemagick poppler-utils
+            python-ox oxframe imagemagick poppler-utils gpac
 
 
 * Prepare Environment
diff --git a/vm/firstboot.sh b/vm/firstboot.sh
index 71c4f520..5a7c9a57 100755
--- a/vm/firstboot.sh
+++ b/vm/firstboot.sh
@@ -46,6 +46,7 @@ apt-get install -y \
     libav-tools \
     ffmpeg2theora \
     mkvtoolnix \
+    gpac \
     imagemagick \
     poppler-utils \
     ipython \