diff --git a/pkgs/applications/audio/fldigi/default.nix b/pkgs/applications/audio/fldigi/default.nix
index 578619eb3f89..e78095a9c5df 100644
--- a/pkgs/applications/audio/fldigi/default.nix
+++ b/pkgs/applications/audio/fldigi/default.nix
@@ -3,10 +3,11 @@
 
 stdenv.mkDerivation rec {
   version = "3.21.82";
-  name = "fldigi";
+  pname = "fldigi";
+  name = "${pname}-${version}";
 
   src = fetchurl {
-    url = "http://www.w1hkj.com/downloads/${name}/${name}-${version}.tar.gz";
+    url = "http://www.w1hkj.com/downloads/${pname}/${name}.tar.gz";
     sha256 = "1q2fc1zm9kfsjir4g6fh95vmjdq984iyxfcs6q4gjqy1znhqcyqs";
   };
 
diff --git a/pkgs/development/libraries/hamlib/default.nix b/pkgs/development/libraries/hamlib/default.nix
index 495c7e99d4b2..e0a6e23c972f 100644
--- a/pkgs/development/libraries/hamlib/default.nix
+++ b/pkgs/development/libraries/hamlib/default.nix
@@ -2,11 +2,12 @@
  boost, libtool, perlPackages }:
 
 stdenv.mkDerivation rec {
-  name = "hamlib";
+  pname = "hamlib";
   version = "1.2.15.3";
+  name = "${pname}-${version}";
 
   src = fetchurl {
-    url = "mirror://sourceforge/${name}/${name}-${version}.tar.gz";
+    url = "mirror://sourceforge/${pname}/${name}.tar.gz";
     sha256 = "0ppp6fc2h9d8p30j2s9wlqd620kmnny4wd8fc3jxd6gxwi4lbjm2";
   };