diff --git a/pkgs/development/libraries/libcutl/default.nix b/pkgs/development/libraries/libcutl/default.nix
index 9abd3b7ccc1c..b13805aa37aa 100644
--- a/pkgs/development/libraries/libcutl/default.nix
+++ b/pkgs/development/libraries/libcutl/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
     license = licenses.mit;
   };
 
-  majmin = builtins.head ( builtins.match "([[:digit:]]\.[[:digit:]]*+)\.*" "${version}" );
+  majmin = builtins.head ( builtins.match "([[:digit:]]\.[[:digit:]]+)\.*" "${version}" );
   src = fetchurl {
     url = "https://codesynthesis.com/download/${pname}/${majmin}/${pname}-${version}.tar.bz2";
     sha256 = "070j2x02m4gm1fn7gnymrkbdxflgzxwl7m96aryv8wp3f3366l8j";