diff --git a/spec/scripts/websocket_server_spec.rb b/spec/scripts/websocket_server_spec.rb
index ec7d5e682..b9ffc4c66 100644
--- a/spec/scripts/websocket_server_spec.rb
+++ b/spec/scripts/websocket_server_spec.rb
@@ -10,7 +10,7 @@ describe 'websocket-server' do
   let(:output_log) { File.expand_path('log/websocket-server_out.log', app_root) }
   let(:error_log)  { File.expand_path('log/websocket-server_err.log', app_root) }
 
-  context 'with IPv6 bind address (via -b option)' do
+  context 'with IPv6 bind address (via -b option)', if: File.exist?('/proc/net/if_inet6') do
     # This error is raised for invalid bind addresses
     let(:error_msg) { "`start_tcp_server': no acceptor" }
     let(:ipv6_addr) { '::1/128' }
@@ -25,7 +25,7 @@ describe 'websocket-server' do
 
     it 'starts up successfully' do
       begin
-        system("RAILS_ENV=test #{ws_server} start -db #{ipv6_addr} -p #{port}")
+        system("RAILS_ENV=test #{ws_server} start -db #{ipv6_addr} -p #{port} >/dev/null 2>&1")
 
         # Wait for daemon to start
         Timeout.timeout(20, Timeout::Error, 'WebSocket Server startup timed out') do