diff --git a/lib/fasterer/offense.rb b/lib/fasterer/offense.rb
index 883b7b1..bd3e862 100644
--- a/lib/fasterer/offense.rb
+++ b/lib/fasterer/offense.rb
@@ -12,7 +12,7 @@ def initialize(offense_name, line_number)
     end
 
     def explanation
-      @explanation ||= EXPLANATIONS.fetch(offense_name)
+      @explanation ||= "#{offense_name}: #{EXPLANATIONS.fetch(offense_name)}
     end
 
     EXPLANATIONS = {