diff --git a/pkgs/development/libraries/ucl/default.nix b/pkgs/development/libraries/ucl/default.nix
index e9739d44bca4..cef853698a8e 100644
--- a/pkgs/development/libraries/ucl/default.nix
+++ b/pkgs/development/libraries/ucl/default.nix
@@ -1,7 +1,7 @@
 {stdenv, fetchurl}:
 
 stdenv.mkDerivation {
-  name = "ucl-1.0.3";
+  name = "ucl-1.03";
   src = fetchurl {
     url = http://www.oberhumer.com/opensource/ucl/download/ucl-1.03.tar.gz;
     sha256 = "b865299ffd45d73412293369c9754b07637680e5c826915f097577cd27350348";