1 files changed, 9 insertions, 1 deletions
diff --git a/railties/lib/rails/commands/dbconsole.rb b/railties/lib/rails/commands/dbconsole.rb
index 4a5674236d..353a64fd01 100644
--- a/railties/lib/rails/commands/dbconsole.rb
+++ b/railties/lib/rails/commands/dbconsole.rb
@@ -136,12 +136,20 @@ module Rails
 
       if arguments.first && arguments.first[0] != '-'
         env = arguments.first
-        options[:environment] = %w(production development test).detect {|e| e =~ /^#{env}/} || env
+        if self.class.available_environments.include? env
+          options[:environment] = env
+        else
+          options[:environment] = %w(production development test).detect {|e| e =~ /^#{env}/} || env
+        end
       end
 
       options
     end
 
+    def self.available_environments
+      Dir[Rails.root.join('config', 'environments', '*.rb')].map { |fname| File.basename(fname, '.*') }
+    end
+
     def find_cmd_and_exec(commands, *args)
       commands = Array(commands)