diff --git a/docs/admin/10_install.rst b/docs/admin/10_install.rst
index b829cd2c92710efa6050f068319ef052e9b4138e..98597a251ef3f8fb05c5130687df1f447a59c1d3 100644
--- a/docs/admin/10_install.rst
+++ b/docs/admin/10_install.rst
@@ -57,6 +57,7 @@ Install some packages from the Debian package system.
                chromium \
                chromium-driver \
                redis-server \
+               pkg-config \
                postgresql \
                locales-all \
                celery