diff --git a/lib/mutant/runner.rb b/lib/mutant/runner.rb
index 91f98a9a..777d1f76 100644
--- a/lib/mutant/runner.rb
+++ b/lib/mutant/runner.rb
@@ -103,7 +103,7 @@ module Mutant
 
     # Handle exit if needed
     #
-    # @param [Result::Mutation] mutation
+    # @param [Result::Mutation] result
     #
     # @return [undefined]
     #