diff --git a/pkgs/development/compilers/chicken/4/egg2nix.nix b/pkgs/development/compilers/chicken/4/egg2nix.nix
index 2adb096e2099..41c2635ffd21 100644
--- a/pkgs/development/compilers/chicken/4/egg2nix.nix
+++ b/pkgs/development/compilers/chicken/4/egg2nix.nix
@@ -9,7 +9,7 @@
 # the tarball. Is there a nicer way than duplicating code?
 
 eggDerivation rec {
-  name = "egg2nix-${version}";
+  pname = "egg2nix";
   version = "0.5";
 
   src = fetchFromGitHub {