diff --git a/manifests/params.pp b/manifests/params.pp
index ad4f4cf0..91e8e3cc 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -8,13 +8,19 @@
 
   case $facts['osfamily'] {
     /RedHat/: {
-      if versioncmp($facts['operatingsystemmajrelease'], '7') >= 0 {
+      if $facts['operatingsystem'] == 'Amazon' and $facts['operatingsystemmajrelease'] =='2018' {
+        $json_packages = [ 'rubygem-json' ]
+        $service_file_location = '/etc/init.d/jira'
+        $service_file_template = 'jira/jira.initscript.erb'
+        $service_lockfile = '/var/lock/subsys/jira'
+        $service_provider = undef
+      } elsif versioncmp($facts['operatingsystemmajrelease'], '7') >= 0 {
         $json_packages = [ 'rubygem-json' ]
         $service_file_location = '/usr/lib/systemd/system/jira.service'
         $service_file_template = 'jira/jira.service.erb'
         $service_lockfile = '/var/lock/subsys/jira'
         $service_provider = 'systemd'
-      } elsif versioncmp($facts['operatingsystemmajrelease'], '6') >= 0 or $facts['operatingsystem'] == 'Amazon' {
+      } elsif versioncmp($facts['operatingsystemmajrelease'], '6') >= 0 {
         $json_packages = [ 'rubygem-json', 'ruby-json' ]
         $service_file_location = '/etc/init.d/jira'
         $service_file_template = 'jira/jira.initscript.erb'