diff --git a/lib/odbc_adapter/adapters/postgresql_odbc_adapter.rb b/lib/odbc_adapter/adapters/postgresql_odbc_adapter.rb
index 05fa17e0..2cb76617 100644
--- a/lib/odbc_adapter/adapters/postgresql_odbc_adapter.rb
+++ b/lib/odbc_adapter/adapters/postgresql_odbc_adapter.rb
@@ -3,7 +3,7 @@ module Adapters
     # Overrides specific to PostgreSQL. Mostly taken from
     # ActiveRecord::ConnectionAdapters::PostgreSQLAdapter
     class PostgreSQLODBCAdapter < ActiveRecord::ConnectionAdapters::ODBCAdapter
-      BOOLEAN_TYPE = 'bool'.freeze
+      BOOLEAN_TYPE = 'boolean'.freeze
       PRIMARY_KEY  = 'SERIAL PRIMARY KEY'.freeze
       VARIANT_TYPE = 'VARIANT'.freeze
       DATE_TYPE = 'DATE'.freeze
@@ -13,7 +13,7 @@ class PostgreSQLODBCAdapter < ActiveRecord::ConnectionAdapters::ODBCAdapter
 
       # Override to handle booleans appropriately
       def native_database_types
-        @native_database_types ||= super.merge(boolean: { name: 'bool' })
+        @native_database_types ||= super.merge(boolean: { name: 'boolean' })
       end
 
       def arel_visitor