diff --git a/lib/sidekiq/web.rb b/lib/sidekiq/web.rb
index c74e10b7..9683eb32 100644
--- a/lib/sidekiq/web.rb
+++ b/lib/sidekiq/web.rb
@@ -41,7 +41,9 @@ module Sidekiq
       def reset_worker_list
         Sidekiq.redis do |conn|
           workers = conn.smembers('workers')
-          conn.srem('workers', *workers)
+          workers.each do |name|
+            conn.srem('workers', name)
+          end
         end
       end
 
diff --git a/test/test_web.rb b/test/test_web.rb
index fb85d32b..5d9861dc 100644
--- a/test/test_web.rb
+++ b/test/test_web.rb
@@ -76,6 +76,11 @@ class TestWeb < Minitest::Test
       end
     end
 
+    it 'can clear the worker list' do
+      post '/reset'
+      assert_equal 302, last_response.status
+    end
+
     it 'can delete a job' do
       Sidekiq.redis do |conn|
         conn.rpush('queue:foo', "{}")
@@ -191,7 +196,6 @@ class TestWeb < Minitest::Test
         assert_equal 200, last_response.status
         assert_match /#{params[0]['args'][2]}/, last_response.body
       end
-
     end
 
     it 'can retry all retries' do