2 files changed, 3 insertions, 5 deletions
diff --git a/activerecord/lib/active_record/associations/class_methods/join_dependency.rb b/activerecord/lib/active_record/associations/class_methods/join_dependency.rb
index d508c3b7aa..13576e1aec 100644
--- a/activerecord/lib/active_record/associations/class_methods/join_dependency.rb
+++ b/activerecord/lib/active_record/associations/class_methods/join_dependency.rb
@@ -14,7 +14,9 @@ module ActiveRecord
           @join_parts            = [JoinBase.new(base)]
           @associations          = {}
           @reflections           = []
-          @table_aliases         = Hash.new(0)
+          @table_aliases         = Hash.new do |h,name|
+            h[name] = count_aliases_from_table_joins(name)
+          end
           @table_aliases[base.table_name] = 1
           build(associations)
         end
diff --git a/activerecord/lib/active_record/associations/class_methods/join_dependency/join_association.rb b/activerecord/lib/active_record/associations/class_methods/join_dependency/join_association.rb
index 2c20e304d0..15c1e7de55 100644
--- a/activerecord/lib/active_record/associations/class_methods/join_dependency/join_association.rb
+++ b/activerecord/lib/active_record/associations/class_methods/join_dependency/join_association.rb
@@ -77,10 +77,6 @@ module ActiveRecord
           protected
 
           def aliased_table_name_for(name, suffix = nil)
-            if @join_dependency.table_aliases[name].zero?
-              @join_dependency.table_aliases[name] = @join_dependency.count_aliases_from_table_joins(name)
-            end
-
             if !@join_dependency.table_aliases[name].zero? # We need an alias
               name = active_record.connection.table_alias_for "#{pluralize(reflection.name)}_#{parent_table_name}#{suffix}"
               @join_dependency.table_aliases[name] += 1