diff --git a/Formula/most.rb b/Formula/most.rb
index caac604ea2a..e1c2ebb7107 100644
--- a/Formula/most.rb
+++ b/Formula/most.rb
@@ -1,9 +1,13 @@
 require 'brewkit'
 
 class Most <Formula
-  @url='ftp://space.mit.edu/pub/davis/most/most-5.0.0.tar.gz'
+  @url='ftp://space.mit.edu/pub/davis/most/most-5.0.0a.tar.bz2'
   @homepage='http://www.jedsoft.org/most/'
-  @md5='8352a6c5b31363f3e60e02a523d6784a'
+  @md5='4c42abfc8d3ace1b0e0062ea021a5917'
+
+  def deps
+    LibraryDep.new 's-lang'
+  end
 
   def install
     system "./configure", "--prefix=#{prefix}", "--disable-debug", "--disable-dependency-tracking"