diff --git a/Gemfile b/Gemfile
index 57ab35e4b9adb6b7868b3512f0b339af135ad81c..ff653aabd3f36aca9a30c76a2981cbb0196b4f4c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -30,6 +30,7 @@ gem "thin"
 gem "value_semantics", git: "https://github.com/singpolyma/value_semantics"
 
 group(:development) do
+	gem "pry-byebug"
 	gem "pry-reload"
 	gem "pry-rescue"
 	gem "pry-stack_explorer"