diff --git a/pkgs/applications/version-management/darcs_2_pre.nix b/pkgs/applications/version-management/darcs/darcs-2.nix
similarity index 62%
rename from pkgs/applications/version-management/darcs_2_pre.nix
rename to pkgs/applications/version-management/darcs/darcs-2.nix
index a8bd48aa3369..ed21e0231cbb 100644
--- a/pkgs/applications/version-management/darcs_2_pre.nix
+++ b/pkgs/applications/version-management/darcs/darcs-2.nix
@@ -1,10 +1,10 @@
 {stdenv, fetchurl, ghc, zlib, ncurses, curl}:
 
 stdenv.mkDerivation {
-  name = "darcs-2.0.0pre3";
+  name = "darcs-2.0.0";
   src = fetchurl {
-    url = http://darcs.net/darcs-2.0.0pre3.tar.gz;
-    sha256 = "";
+    url = http://darcs.net/darcs-2.0.0.tar.gz;
+    sha256 = "1admaglbf7i15x9pihncqj5iraqzcw801pf76f0pd2hbc2k0yx7x";
   };
   buildInputs = [ghc zlib ncurses curl];
 
diff --git a/pkgs/development/misc/bleeding-edge-repos/default.nix b/pkgs/development/misc/bleeding-edge-repos/default.nix
index 80cddf9d11ed..dd6903225b29 100644
--- a/pkgs/development/misc/bleeding-edge-repos/default.nix
+++ b/pkgs/development/misc/bleeding-edge-repos/default.nix
@@ -25,7 +25,7 @@ args:
          else builtins.trace "warning, no bleeding edge source info (${fetchUrlInfoFile}) found for ${name}, hash will propably be wrong"
                (let attr = __getAttr name repos;
                  in if (attr.type == "darcs")
-                   then fetchdarcs_2pre { inherit (attr) url md5; }
+                   then fetchdarcs2 { inherit (attr) url md5; }
                    else throw "TODO") );
 
   repos = {
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 93032f0b45e0..f17330793be3 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -335,9 +335,9 @@ let pkgs = rec {
 
   # only temporarely  / don't know yet wether it's save to switch
   # but I have trouble getting HAppS repos
-  fetchdarcs_2pre = import ../build-support/fetchdarcs {
+  fetchdarcs2 = import ../build-support/fetchdarcs {
     inherit stdenv nix;
-    darcs = darcs_2_pre;
+    darcs = darcs2;
   };
 
   fetchsvn = import ../build-support/fetchsvn {
@@ -1860,7 +1860,7 @@ let pkgs = rec {
   */
 
   bleedingEdgeRepos = import ../development/misc/bleeding-edge-repos { 
-    inherit getConfig fetchdarcs_2pre fetchurl; 
+    inherit getConfig fetchdarcs2 fetchurl; 
   };
 
   ecj = import ../development/eclipse/ecj {
@@ -5013,7 +5013,7 @@ let pkgs = rec {
   };
 
   # some speed bottle necks are resolved in this version I think .. perhaps you like to try it? 
-  darcs_2_pre = import ../applications/version-management/darcs_2_pre.nix {
+  darcs2 = import ../applications/version-management/darcs/darcs-2.nix {
     inherit fetchurl stdenv zlib ncurses curl ghc;
   };
 
@@ -6227,7 +6227,7 @@ let pkgs = rec {
   nixRepositoryManager = import ../tools/package-management/nixRepositoryManager {
     inherit fetchurl stdenv bleedingEdgeRepos lib writeText getConfig;
     ghc = ghcsAndLibs.ghc68.ghc;
-    fetchdarcs = fetchdarcs_2pre;
+    fetchdarcs = fetchdarcs2;
   };
 
   nixStatic = import ../tools/package-management/nix-static {