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-rw-r--r--nixpkgs/pkgs/development/libraries/libcutl/default.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/development/libraries/libcutl/default.nix b/nixpkgs/pkgs/development/libraries/libcutl/default.nix
index 7a5c39849291..ed6aae0f3083 100644
--- a/nixpkgs/pkgs/development/libraries/libcutl/default.nix
+++ b/nixpkgs/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";