diff --git a/.gitignore b/.gitignore
index 485dee6..f32e31a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-.idea
+.idea/
+.DS_Store
diff --git a/11.0/Dockerfile b/11.0/Dockerfile
index 5b84152..43eb83c 100644
--- a/11.0/Dockerfile
+++ b/11.0/Dockerfile
@@ -1,6 +1,16 @@
 FROM debian:stretch
 MAINTAINER Odoo S.A. <info@odoo.com>
 
+# Generate locale C.UTF-8 for postgres and general locale data
+ENV DEBIAN_FRONTEND noninteractive
+RUN apt-get update -qq && apt-get install -y locales -qq
+RUN echo 'es_US.UTF-8 UTF-8' >> /etc/locale.gen && locale-gen
+RUN echo 'C.UTF-8 UTF-8' >> /etc/locale.gen && locale-gen
+RUN dpkg-reconfigure locales && /usr/sbin/update-locale LANG=C.UTF-8
+ENV LANG C.UTF-8
+ENV LANGUAGE C.UTF-8
+ENV LC_ALL C.UTF-8
+
 # Install some deps, lessc and less-plugin-clean-css, and wkhtmltopdf
 RUN set -x; \
         apt-get update \
@@ -32,6 +42,7 @@ RUN set -x; \
         && rm -rf /var/lib/apt/lists/* odoo.deb
 
 # Copy entrypoint script and Odoo configuration file
+RUN pip3 install num2words
 COPY ./entrypoint.sh /
 COPY ./odoo.conf /etc/odoo/
 RUN chown odoo /etc/odoo/odoo.conf