diff --git a/devops-service/db/validators/helpers/run_list.rb b/devops-service/db/validators/helpers/run_list.rb
index e9f73ac..3fa9418 100644
--- a/devops-service/db/validators/helpers/run_list.rb
+++ b/devops-service/db/validators/helpers/run_list.rb
@@ -1,9 +1,10 @@
 module Validators
   class Helpers::RunList < Base
 
+    RUN_LIST_REGEX = /\Arole|recipe\[[\w-]+(::[\w-]+)?\]\Z/
+
     def valid?
-      rl = /\Arole|recipe\[[\w-]+(::[\w-]+)?\]\Z/
-      @invalid_elements = @model.select {|l| (rl =~ l).nil?}
+      @invalid_elements = @model.select {|l| (RUN_LIST_REGEX =~ l).nil?}
       @invalid_elements.empty?
     end
 
@@ -12,4 +13,4 @@ module Validators
       "Invalid run list elements: '#{invalid_elements_as_string}'. Each element should be role or recipe."
     end
   end
-end
\ No newline at end of file
+end