diff --git a/lib/sbdb/db.rb b/lib/sbdb/db.rb
index 0d44f27..500053d 100644
--- a/lib/sbdb/db.rb
+++ b/lib/sbdb/db.rb
@@ -60,7 +60,7 @@ module SBDB
 
 	class Unknown < DB
 		def self.new *p, &e
-			db = super *p[0...2], UNKNOWN, *p[2..-1], &e
+			db = super *p[0...2], UNKNOWN, *p[2..-1]
 			case db.bdb_object.get_type
 			when BTREE  then Btree.new *p
 			when HASH   then Hash.new  *p
diff --git a/lib/sbdb/environment.rb b/lib/sbdb/environment.rb
index 39c7157..13e3347 100644
--- a/lib/sbdb/environment.rb
+++ b/lib/sbdb/environment.rb
@@ -21,15 +21,15 @@ module SBDB
 		# returns the Bdb-object.
 		def bdb_object()  @env  end
 		# Opens a Btree in this Environment
-		def btree( *p, &e)   Btree.new   *p[0...5], self, p[5..-1], &e end 
+		def btree( *p, &e)   Btree.new   *p[0...6], self, p[6..-1], &e end 
 		# Opens a Hash in this Environment
-		def hash( *p, &e)    Hash.new    *p[0...5], self, p[5..-1], &e end 
+		def hash( *p, &e)    Hash.new    *p[0...6], self, p[6..-1], &e end 
 		# Opens a Recno in this Environment
-		def recno( *p, &e)   Recno.new   *p[0...5], self, p[5..-1], &e end 
+		def recno( *p, &e)   Recno.new   *p[0...6], self, p[6..-1], &e end 
 		# Opens a Queue in this Environment
-		def queue( *p, &e)   Queue.new   *p[0...5], self, p[5..-1], &e end 
+		def queue( *p, &e)   Queue.new   *p[0...6], self, p[6..-1], &e end 
 		# Opens a DB of unknown type in this Environment
-		def unknown( *p, &e) Unknown.new *p[0...5], self, p[5..-1], &e end 
+		def unknown( *p, &e) Unknown.new *p[0...6], self, p[6..-1], &e end 
 
 		def initialize dir = nil, flags = nil, mode = nil
 			@dbs, @env = WeakHash.new, Bdb::Env.new( 0)
@@ -61,7 +61,7 @@ module SBDB
 		# Opens a Database.
 		# see SBDB::DB, SBDB::Btree, SBDB::Hash, SBDB::Recno, SBDB::Queue
 		def open type, *p, &e
-			(type || SBDB::Unkown).new *p[0...5], self, p[5..-1], &e
+			(type || SBDB::Unkown).new *p[0...6], self, p[6..-1], &e
 		end
 		alias db open
 		alias open_db open
@@ -71,7 +71,7 @@ module SBDB
 		# If you use this, never use close. It's possible somebody else use it too.
 		# The Databases, which are opened, will close, if the Environment will close.
 		def [] file, name = nil, type = nil, &e
-			@dbs[ [file, name]] ||= (type || SBDB::Unkown).new file, name, nil, nil, self, &e
+			@dbs[ [file, name]] ||= (type || SBDB::Unkown).new file, name, nil, nil, nil, self, &e
 		end
 	end
 	Env = Environment