diff --git a/ecs-service.cfhighlander.rb b/ecs-service.cfhighlander.rb
index 9beb76b..b17b150 100644
--- a/ecs-service.cfhighlander.rb
+++ b/ecs-service.cfhighlander.rb
@@ -39,7 +39,7 @@
       ComponentParam 'SecurityGroupBackplane'
       ComponentParam 'EnableFargate', 'false'
       ComponentParam 'DisableLaunchType', 'false'
-      ComponentParam 'PlatformVersion' if defined? platform_version
+      ComponentParam 'PlatformVersion', platform_version if defined? platform_version
     end
 
     task_definition.each do |task_def, task|