diff --git a/contrib/teamcity/build-configurations.yml b/contrib/teamcity/build-configurations.yml
--- a/contrib/teamcity/build-configurations.yml
+++ b/contrib/teamcity/build-configurations.yml
@@ -113,6 +113,7 @@
   build-docs:
     targets:
       - - doc-rpc
+        - install-manpages-html
     timeout: 600
     artifacts:
       doc/*: doc
diff --git a/contrib/teamcity/setup-debian-buster.sh b/contrib/teamcity/setup-debian-buster.sh
--- a/contrib/teamcity/setup-debian-buster.sh
+++ b/contrib/teamcity/setup-debian-buster.sh
@@ -25,6 +25,7 @@
   g++-mingw-w64
   gnupg
   gperf
+  help2man
   imagemagick
   jq
   lcov
@@ -68,6 +69,7 @@
   software-properties-common
   tar
   wget
+  xvfb
   yamllint
   wine
 )
diff --git a/doc/man/gen-manpages.sh b/doc/man/gen-manpages.sh
--- a/doc/man/gen-manpages.sh
+++ b/doc/man/gen-manpages.sh
@@ -25,6 +25,14 @@
   exit 2
 fi
 
+# Unfortunately bitcoin-qt requires a handle on the DISPLAY, even for the
+# --help option. We can spoof an X window using xvfb.
+if ! command -v xvfb-run
+then
+  echo "xvfb is required to run $0 headlessly, please install it"
+  exit 3
+fi
+
 BITCOIND="$1"
 BIN="$2"
 MANPAGE="$3"
@@ -32,12 +40,12 @@
 if [ ! -x "${BITCOIND}" ]
 then
   echo "${BITCOIND} not found or not executable."
-  exit 3
+  exit 4
 fi
 if [ ! -x "${BIN}" ]
 then
   echo "${BIN} not found or not executable."
-  exit 3
+  exit 5
 fi
 
 mkdir -p "$(dirname ${MANPAGE})"
@@ -56,5 +64,6 @@
 echo "[COPYRIGHT]" > "${FOOTER}"
 "${BITCOIND}" --version | sed -n '1!p' >> "${FOOTER}"
 
-help2man -N --version-string="${VERSION[0]}" --include="${FOOTER}" -o "${MANPAGE}" "${BIN}"
+xvfb-run -a -e /dev/stderr \
+  help2man -N --version-string="${VERSION[0]}" --include="${FOOTER}" -o "${MANPAGE}" "${BIN}"
 sed -i "s/\\\-${VERSION[1]}//g" "${MANPAGE}"