diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb
index 635e60ad187da..6329733abc44c 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb
@@ -103,7 +103,7 @@ def type_cast(value, column, array_member = false)
               PostgreSQLColumn.array_to_string(value, column, self)
             end
           when String
-            return super(value, column) unless 'bytea' == couln.sql_type
+            return super(value, column) unless 'bytea' == column.sql_type
             { :value => value, :format => 1 }
           when Hash
             case column.sql_type