diff --git a/lib/query.rb b/lib/query.rb
index f3f3fc5..5865d74 100644
--- a/lib/query.rb
+++ b/lib/query.rb
@@ -7,6 +7,7 @@ class Query
 
   def amount
     return unless @params[:amount]
+
     @params[:amount].to_f
   end
 
diff --git a/lib/quote/end_of_day.rb b/lib/quote/end_of_day.rb
index a762a8a..6f838de 100644
--- a/lib/quote/end_of_day.rb
+++ b/lib/quote/end_of_day.rb
@@ -14,6 +14,7 @@ module Quote
 
     def cache_key
       return if not_found?
+
       Digest::MD5.hexdigest(result.keys.first)
     end
 
diff --git a/lib/quote/interval.rb b/lib/quote/interval.rb
index 300abf2..e7a703e 100644
--- a/lib/quote/interval.rb
+++ b/lib/quote/interval.rb
@@ -15,6 +15,7 @@ module Quote
 
     def cache_key
       return if not_found?
+
       Digest::MD5.hexdigest(result.keys.last)
     end