diff --git a/pkgs/development/libraries/audio/zita-convolver/default.nix b/pkgs/development/libraries/audio/zita-convolver/default.nix
index 11a06d4f39a..4fc5c12ccc4 100644
--- a/pkgs/development/libraries/audio/zita-convolver/default.nix
+++ b/pkgs/development/libraries/audio/zita-convolver/default.nix
@@ -2,16 +2,16 @@
 
 stdenv.mkDerivation rec {
   name = "zita-convolver-${version}";
-  version = "4.0.0";
+  version = "4.0.3";
   src = fetchurl {
     url = "http://kokkinizita.linuxaudio.org/linuxaudio/downloads/${name}.tar.bz2";
-    sha256 = "0fx7f48ls0rlndqrmd4k7ifpnml39yxzc2f0n6xyysypgn06y673";
+    sha256 = "0prji66p86z2bzminywkwchr5bfgxcg2i8y803pydd1hzf2198cs";
   };
 
   buildInputs = [ fftwFloat ];
 
   patchPhase = ''
-    cd libs
+    cd source
     sed -e "s@ldconfig@@" -i Makefile
   '';