diff --git a/pkgs/applications/misc/workrave/default.nix b/pkgs/applications/misc/workrave/default.nix
index 045767eb4136..f8ec86dd2b39 100644
--- a/pkgs/applications/misc/workrave/default.nix
+++ b/pkgs/applications/misc/workrave/default.nix
@@ -10,11 +10,15 @@
   gdome2, gstreamer, libsigcxx }:
 
 stdenv.mkDerivation rec {
-  version = "v1_10_6";
+  version = "1.10.6";
   name = "workrave-${version}";
 
-  src = fetchurl {
-    url = "http://github.com/rcaelers/workrave/archive/${version}.tar.gz";
+  src = let
+    version_ = with stdenv.lib;
+      concatStringsSep "_" (splitString "." version);
+  in fetchurl {
+    name = "${name}.tar.gz";
+    url = "http://github.com/rcaelers/workrave/archive/v${version_}.tar.gz";
     sha256 = "0q2p83n33chbqzdcdm7ykfsy73frfi6drxzm4qidxwzpzsxrysgq";
   };