diff --git a/pkgs/applications/emulators/c64-debugger/default.nix b/pkgs/applications/emulators/c64-debugger/default.nix
index fcd3a0aa9b52..ad0da506b4ff 100644
--- a/pkgs/applications/emulators/c64-debugger/default.nix
+++ b/pkgs/applications/emulators/c64-debugger/default.nix
@@ -12,7 +12,7 @@
 }:
 
 stdenv.mkDerivation {
-  name = "c64-debugger";
+  pname = "c64-debugger";
   version = "0.64.58.6";
 
   src = fetchgit {