diff --git a/.travis.yml b/.travis.yml
index 3cfb0f86..ddff645f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,6 +6,9 @@ rvm:
   - 2.2
   - 2.1
   - 2.0
+branches:
+  only:
+  - master
 matrix:
   include:
     # Run Danger only once, on 2.5
diff --git a/test/functional/backends/test_netssh.rb b/test/functional/backends/test_netssh.rb
index 52837eee..dd693d0a 100644
--- a/test/functional/backends/test_netssh.rb
+++ b/test/functional/backends/test_netssh.rb
@@ -38,7 +38,7 @@ def test_simple_netssh
           "Command: /usr/bin/env ls -l\n",
           "Command: if test ! -d /tmp; then echo \"Directory does not exist '/tmp'\" 1>&2; false; fi\n",
           "Command: if ! sudo -u root whoami > /dev/null; then echo \"You cannot switch to user 'root' using sudo, please check the sudoers file\" 1>&2; false; fi\n",
-          "Command: cd /tmp && ( export RAILS_ENV=\"production\" ; sudo -u root RAILS_ENV=\"production\" -- sh -c '/usr/bin/env touch restart.txt' )\n"
+          "Command: cd /tmp && ( export RAILS_ENV=\"production\" ; sudo -u root RAILS_ENV=\"production\" -- sh -c /usr/bin/env\\ touch\\ restart.txt )\n"
         ], command_lines
       end
 
@@ -82,7 +82,7 @@ def test_group_netssh
         command_lines = @output.lines.select { |line| line.start_with?('Command:') }
         assert_equal [
           "Command: if ! sudo -u root whoami > /dev/null; then echo \"You cannot switch to user 'root' using sudo, please check the sudoers file\" 1>&2; false; fi\n",
-          "Command: sudo -u root -- sh -c 'sg admin -c \"/usr/bin/env touch restart.txt\"'\n"
+          "Command: sudo -u root -- sh -c sg\\ admin\\ -c\\ /usr/bin/env\\\\\\ touch\\\\\\ restart.txt\n"
         ], command_lines
       end
 
@@ -96,21 +96,18 @@ def test_capture
       end
 
       def test_ssh_option_merge
-        verify_host_opt = if Net::SSH::Version::MAJOR >= 5
-                            { verify_host_key: :always }
-                          else
-                            { paranoid: true }
-                          end
-        a_host.ssh_options = verify_host_opt
+        keepalive_opt = { keepalive: true }
+        test_host = a_host.dup
+        test_host.ssh_options = keepalive_opt
         host_ssh_options = {}
         SSHKit::Backend::Netssh.config.ssh_options = { forward_agent: false }
-        Netssh.new(a_host) do |host|
+        Netssh.new(test_host) do |host|
           capture(:uname)
           host_ssh_options = host.ssh_options
         end.run
-        assert_equal [:forward_agent, *verify_host_opt.keys, :known_hosts, :logger, :password_prompt].sort, host_ssh_options.keys.sort
+        assert_equal [:forward_agent, *keepalive_opt.keys, :known_hosts, :logger, :password_prompt].sort, host_ssh_options.keys.sort
         assert_equal false, host_ssh_options[:forward_agent]
-        assert_equal verify_host_opt.values.first, host_ssh_options[verify_host_opt.keys.first]
+        assert_equal keepalive_opt.values.first, host_ssh_options[keepalive_opt.keys.first]
         assert_instance_of SSHKit::Backend::Netssh::KnownHosts, host_ssh_options[:known_hosts]
       end
 
diff --git a/test/support/vagrant_wrapper.rb b/test/support/vagrant_wrapper.rb
index b68c8bd7..fbf3ae4d 100644
--- a/test/support/vagrant_wrapper.rb
+++ b/test/support/vagrant_wrapper.rb
@@ -46,10 +46,19 @@ def vm_host(vm)
           user: vm['user'] || 'vagrant',
           hostname: vm['hostname'] || 'localhost',
           port: vm['port'] || '22',
-          password: vm['password'] || 'vagrant'
+          password: vm['password'] || 'vagrant',
+          ssh_options: host_verify_options
       }
 
       SSHKit::Host.new(host_options)
     end
+
+    def host_verify_options
+      if Net::SSH::Version::MAJOR >= 5
+        { verify_host_key: :never }
+      else
+        { paranoid: false }
+      end
+    end
   end
 end