1 files changed, 1 insertions, 0 deletions
diff --git a/debian/control b/debian/control
index e47767d75..0646b22a1 100644
--- a/debian/control
+++ b/debian/control
@@ -14,6 +14,7 @@ Build-Depends: graphviz,
                openssl,
                procps,
                python3-all,
+               python3-sphinx,
                python3-twisted,
                python3-zope.interface,
                libunbound-dev,