diff --git a/pkgs/development/libraries/boost/1.47.nix b/pkgs/development/libraries/boost/1.47.nix
index 4b0c4d3f140..b8774b70265 100644
--- a/pkgs/development/libraries/boost/1.47.nix
+++ b/pkgs/development/libraries/boost/1.47.nix
@@ -56,7 +56,7 @@ stdenv.mkDerivation {
   };
 
   # See <http://svn.boost.org/trac/boost/ticket/4688>.
-  patches = [ ./boost_filesystem.patch ];
+  patches = [ ./boost_filesystem_1_47_0.patch ];
 
   enableParallelBuilding = true;
 
diff --git a/pkgs/development/libraries/boost/boost_filesystem.patch b/pkgs/development/libraries/boost/boost_filesystem_1_47_0.patch
similarity index 100%
rename from pkgs/development/libraries/boost/boost_filesystem.patch
rename to pkgs/development/libraries/boost/boost_filesystem_1_47_0.patch