diff --git a/pkgs/servers/news/leafnode/1.nix b/pkgs/servers/news/leafnode/1.nix
index 377fbe2a7a2f..c68ad1d69946 100644
--- a/pkgs/servers/news/leafnode/1.nix
+++ b/pkgs/servers/news/leafnode/1.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "1.12.0";
 
   src = fetchurl {
-    url = "https://downloads.sourceforge.net/project/leafnode/leafnode/${version}/leafnode-${version}.tar.gz";
+    url = "https://downloads.sourceforge.net/project/leafnode/leafnode/${finalAttrs.version}/leafnode-${finalAttrs.version}.tar.gz";
     sha256 = "sha256-tGfOcyH2F6IeglfY00u199eKusnn6HeqD7or3Oz3ed4=";
   };
 
diff --git a/pkgs/servers/news/leafnode/default.nix b/pkgs/servers/news/leafnode/default.nix
index 0961bfdcdf6c..01bd7b011a77 100644
--- a/pkgs/servers/news/leafnode/default.nix
+++ b/pkgs/servers/news/leafnode/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.0.0.alpha20140727b";
 
   src = fetchurl {
-    url = "http://krusty.dt.e-technik.tu-dortmund.de/~ma/leafnode/beta/leafnode-${version}.tar.bz2";
+    url = "http://krusty.dt.e-technik.tu-dortmund.de/~ma/leafnode/beta/leafnode-${finalAttrs.version}.tar.bz2";
     sha256 = "sha256-NOuiy7uHG3JMjV3UAtHDWK6yG6QmvrVljhVe0NdGEHU=";
   };