diff --git a/lib/mrsk/commands/app.rb b/lib/mrsk/commands/app.rb
index e43276ed..e650217a 100644
--- a/lib/mrsk/commands/app.rb
+++ b/lib/mrsk/commands/app.rb
@@ -141,7 +141,7 @@ class Mrsk::Commands::App < Mrsk::Commands::Base
     end
 
     def filters
-      ["label=service=#{config.service}"].tap do |filters|
+      [ "label=service=#{config.service}" ].tap do |filters|
         filters << "label=destination=#{config.destination}" if config.destination
       end
     end