diff --git a/core/lib/refinery/admin/base_controller.rb b/core/lib/refinery/admin/base_controller.rb
index d31e717d49..d0335016e1 100644
--- a/core/lib/refinery/admin/base_controller.rb
+++ b/core/lib/refinery/admin/base_controller.rb
@@ -41,7 +41,9 @@ def group_by_date(records)
 
         records.each do |record|
           key = record.created_at.strftime("%Y-%m-%d")
-          record_group = new_records.collect{|records| records.last if records.first == key }.flatten.compact << record
+          record_group = new_records.map{|r|
+            r.last if r.first == key
+          }.flatten.compact << record
           (new_records.delete_if {|i| i.first == key}) << [key, record_group]
         end
 
diff --git a/core/lib/refinery/core/engine.rb b/core/lib/refinery/core/engine.rb
index d7775f7061..5c586641e0 100644
--- a/core/lib/refinery/core/engine.rb
+++ b/core/lib/refinery/core/engine.rb
@@ -29,9 +29,9 @@ def refinery_inclusion!
       config.autoload_paths += %W( #{config.root}/lib )
 
       # Include the refinery controllers and helpers dynamically
-      config.to_prepare &method(:refinery_inclusion!).to_proc
+      config.to_prepare(&method(:refinery_inclusion!).to_proc)
 
-      after_inclusion &method(:register_decorators!).to_proc
+      after_inclusion(&method(:register_decorators!).to_proc)
 
       # Wrap errors in spans
       config.to_prepare do
diff --git a/core/lib/refinery/ext/action_view/helpers/form_helper.rb b/core/lib/refinery/ext/action_view/helpers/form_helper.rb
index 2d764e5d46..07ac0d1145 100644
--- a/core/lib/refinery/ext/action_view/helpers/form_helper.rb
+++ b/core/lib/refinery/ext/action_view/helpers/form_helper.rb
@@ -7,14 +7,14 @@ def required_label(object_name, method, options = {})
   end
 
 
-  def label_humanize_text method, options = {}
+  def label_humanize_text(method, options = {})
     object = options[:object]
 
     content ||= if object && object.class.respond_to?(:human_attribute_name)
       object.class.human_attribute_name(method)
     end
 
-    content ||= method.humanize
+    content || method.humanize
   end
 
 end