diff --git a/11.0/Dockerfile b/11.0/Dockerfile
index 152be4b..414a238 100644
--- a/11.0/Dockerfile
+++ b/11.0/Dockerfile
@@ -21,7 +21,8 @@ RUN set -x; \
         && tar xvf wkhtmltox.tar.xz \
         && cp wkhtmltox/lib/* /usr/local/lib/ \
         && cp wkhtmltox/bin/* /usr/local/bin/ \
-        && cp -r wkhtmltox/share/man/man1 /usr/local/share/man/
+        && cp -r wkhtmltox/share/man/man1 /usr/local/share/man/ \
+        && rm -rf wkhtmltox.tar.xz wkhtmltox /var/lib/apt/lists/*
 
 # Install Odoo
 ENV ODOO_VERSION 11.0