diff --git a/twitter/stream.rb b/twitter/stream.rb
index aa81a12..fa5420f 100644
--- a/twitter/stream.rb
+++ b/twitter/stream.rb
@@ -1,6 +1,5 @@
 require 'rubygems'
 require 'twitter'
-require 'iconv'
 
 #disable address resolv to avoid problems with proxy
 class Resolv
@@ -11,9 +10,7 @@ end
 
 #Filters non-UTF8 octets
 def UTF8Filter(string)
-    ic = Iconv.new('UTF-8//IGNORE', 'UTF-8')
-    #Attention please, don't remove + ' ')[0..-2] it is used for UTF8 validation
-    ic.iconv(string + ' ')[0..-2]
+  string.encode("UTF-8", :invalid => :replace, :undef => :replace, :replace => "?")
 end
 
 def listen_twitter_stream(hub, author_id)
--
libgit2 0.21.2