diff --git a/doc/manual/installing.rst b/doc/manual/installing.rst
index a48d0f803..0c8aa9b85 100644
--- a/doc/manual/installing.rst
+++ b/doc/manual/installing.rst
@@ -51,6 +51,7 @@ Installing multiple packages and making them visible to the ARTIQ commands requi
               #ps.scipy
               #ps.numba
               #ps.matplotlib
+              #ps.jsonschema # required by artiq_ddb_template
               # or if you need Qt (will recompile):
               #(ps.matplotlib.override { enableQt = true; })
               #ps.bokeh