diff --git a/lib/crawler_detect/detector.rb b/lib/crawler_detect/detector.rb
index d4edc1b..a906b58 100644
--- a/lib/crawler_detect/detector.rb
+++ b/lib/crawler_detect/detector.rb
@@ -11,9 +11,7 @@ def initialize(user_agent)
 
     # @return [true, false] Is User-agent a crawler?
     def is_crawler?
-      @is_crawler ||= begin
-        !completely_exclusion? && matches_crawler_list?
-      end
+      @is_crawler ||= !completely_exclusion? && matches_crawler_list?
     end
 
     # @return [String] The detected crawler name from RAW data