diff --git a/fakefs.gemspec b/fakefs.gemspec
index 11ef2ed..1dea96e 100644
--- a/fakefs.gemspec
+++ b/fakefs.gemspec
@@ -5,7 +5,7 @@
 
 Gem::Specification.new do |s|
   s.name = %q{fakefs}
-  s.version = "0.1.5"
+  s.version = "0.1.6"
 
   s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
   s.authors = ["Chris Wanstrath"]
diff --git a/lib/fakefs/file.rb b/lib/fakefs/file.rb
index 85b66bb..936ee93 100644
--- a/lib/fakefs/file.rb
+++ b/lib/fakefs/file.rb
@@ -65,11 +65,11 @@ module FakeFS
       FileSystem.find(symlink.target).to_s
     end
 
-    def self.open(path, mode='r')
+    def self.open(path, mode='r', perm = 0644)
       if block_given?
-        yield new(path, mode)
+        yield new(path, mode, perm)
       else
-        new(path, mode)
+        new(path, mode, perm)
       end
     end
 
@@ -87,7 +87,7 @@ module FakeFS
     end
 
     attr_reader :path
-    def initialize(path, mode = nil)
+    def initialize(path, mode = nil, perm = nil)
       @path = path
       @mode = mode
       @file = FileSystem.find(path)
diff --git a/lib/fakefs/version.rb b/lib/fakefs/version.rb
index bebb192..e5d3f1d 100644
--- a/lib/fakefs/version.rb
+++ b/lib/fakefs/version.rb
@@ -1,6 +1,6 @@
 module FakeFS
   module Version
-    VERSION = "0.1.5"
+    VERSION = "0.1.6"
 
     def self.to_s
       VERSION