diff --git a/lib/rails_patch/active_record.rb b/lib/rails_patch/active_record.rb
index 5b943416d3..e920f6d385 100644
--- a/lib/rails_patch/active_record.rb
+++ b/lib/rails_patch/active_record.rb
@@ -12,7 +12,7 @@ class MysqlAdapter
       def change_column(table_name, column_name, type, options ={ }) #:nodoc:
         if options[:default].nil?
           options[:default] =
-            select_one("SHOW COLUMNS FROM #{table_name} LIKE #{column_name}")["Default"]
+            select_one("SHOW COLUMNS FROM #{table_name} LIKE '#{column_name}'")["Default"]
         end
         change_column_sql = "ALTER TABLE #{table_name} CHANGE #{column_name} #{column_name} #{type_to_sql(type, options[:limit])}"
         add_column_options!(change_column_sql, options)