diff --git a/db/migrate/20231026032527_rename_appendable_to_reaction.rb b/db/migrate/20231026032527_rename_appendable_to_reaction.rb
index 5af26242..6a7b5d9d 100644
--- a/db/migrate/20231026032527_rename_appendable_to_reaction.rb
+++ b/db/migrate/20231026032527_rename_appendable_to_reaction.rb
@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 class RenameAppendableToReaction < ActiveRecord::Migration[7.0]
   def change
     rename_table :appendables, :reactions
-    remove_column :reactions, :type
+    remove_column :reactions, :type, :string
   end
 end
diff --git a/lib/use_case/data_export/reactions.rb b/lib/use_case/data_export/reactions.rb
index 661592f6..7710f8e7 100644
--- a/lib/use_case/data_export/reactions.rb
+++ b/lib/use_case/data_export/reactions.rb
@@ -7,8 +7,8 @@ module UseCase
         "reactions.json" => json_file!(
           reactions: [
             *user.smiles.map(&method(:collect_reaction))
-          ]
-        )
+          ],
+        ),
       }
 
       def collect_reaction(reaction)
diff --git a/spec/lib/use_case/data_export/reactions_spec.rb b/spec/lib/use_case/data_export/reactions_spec.rb
index cab38f43..2431da77 100644
--- a/spec/lib/use_case/data_export/reactions_spec.rb
+++ b/spec/lib/use_case/data_export/reactions_spec.rb
@@ -9,7 +9,7 @@ describe UseCase::DataExport::Reactions, :data_export do
     it "returns an empty set of reactions" do
       expect(json_file("reactions.json")).to eq(
         {
-          reactions: []
+          reactions: [],
         }
       )
     end