diff --git a/html/index.js b/html/index.js
index 80a8cbf..2b832e3 100644
--- a/html/index.js
+++ b/html/index.js
@@ -303,6 +303,7 @@ async function clickCount() {
 				elP.innerText = 'Count computed by pyRCV2 (revision ' + pyRCV2version + ').';
 			}
 			elP.innerText += ' Read ' + evt.data.total_ballots + ' ballots from ‘' + filePath + '’ for election ‘' + election.name + '’.';
+			elP.innerText += ' There are ' + election.candidates.length + ' candidates for ' + election.seats + ' vacancies.';
 			if (evt.data.options === '') {
 				elP.innerText += ' Counting using default options.';
 			} else {
diff --git a/html/worker.js b/html/worker.js
index c2397ed..e382fbb 100644
--- a/html/worker.js
+++ b/html/worker.js
@@ -68,7 +68,8 @@ onmessage = function(evt) {
 			'type': 'init',
 			'election': {
 				'name': election.py_name,
-				'candidates': election.candidates.map(c => c.py_name)
+				'candidates': election.candidates.map(c => c.py_name),
+				'seats': election.seats,
 			},
 			'total_ballots': total_ballots.pp(0),
 			'options': counter.describe_options(),