diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index f372030b38e..bc3284bcf2b 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -64,7 +64,7 @@ self: super: {
   # all required dependencies are part of Stackage. To comply with Stackage, we
   # make 'git-annex-without-assistant' our default version, but offer another
   # build which has the assistant to be used in the top-level.
-  git-annex_5_20151019 = (disableCabalFlag super.git-annex_5_20151019 "assistant").override {
+  git-annex_5_20150727 = (disableCabalFlag super.git-annex_5_20150727 "assistant").override {
     dbus = if pkgs.stdenv.isLinux then self.dbus else null;
     fdo-notify = if pkgs.stdenv.isLinux then self.fdo-notify else null;
     hinotify = if pkgs.stdenv.isLinux then self.hinotify else self.fsnotify;