diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb
index b37630a04c3cd01dc37646487e92a46a7f14bef1..a9522e152f86074c8dbd352208d3c3d6d1d5fdf9 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb
@@ -125,10 +125,8 @@ class TableDefinition < ActiveRecord::ConnectionAdapters::TableDefinition
         # a record (as primary keys cannot be +nil+). This might be done via the
         # +SecureRandom.uuid+ method and a +before_save+ callback, for instance.
         def primary_key(name, type = :primary_key, options = {})
-          return super unless type == :uuid
-          options[:default] = options.fetch(:default, 'uuid_generate_v4()')
-          options[:primary_key] = true
-          column name, type, options
+          options[:default] = options.fetch(:default, 'uuid_generate_v4()') if type == :uuid
+          super
         end
 
         def new_column_definition(name, type, options) # :nodoc: