diff --git a/app/lib/three_scale/redis_config.rb b/app/lib/three_scale/redis_config.rb
index 5810165a6b..623a5aaa58 100644
--- a/app/lib/three_scale/redis_config.rb
+++ b/app/lib/three_scale/redis_config.rb
@@ -6,7 +6,7 @@ def initialize(redis_config = {})
       raw_config = (redis_config || {}).symbolize_keys
       sentinels = raw_config.delete(:sentinels).presence
       raw_config.delete_if { |key, value| value.blank? }
-      set_pool_size(raw_config)
+      raw_config[:size] ||= raw_config.delete(:pool_size) if raw_config.key?(:pool_size)
 
       @config = ActiveSupport::OrderedOptions.new.merge(raw_config)
       config.sentinels = parse_sentinels(sentinels) if sentinels
@@ -56,11 +56,5 @@ def parse_sentinels(sentinels)
         parsed_sentinel
       end
     end
-
-    def set_pool_size(config)
-      return if config[:size].present?
-
-      config[:size] = config.delete(:pool_size) if config.key?(:pool_size)
-    end
   end
 end