diff --git a/pkgs/games/soldat-unstable/default.nix b/pkgs/games/soldat-unstable/default.nix
index 2228b8f35fa..12799a1e152 100644
--- a/pkgs/games/soldat-unstable/default.nix
+++ b/pkgs/games/soldat-unstable/default.nix
@@ -38,8 +38,8 @@ let
 in
 
 stdenv.mkDerivation rec {
-  pname = "soldat-unstable";
-  version = "2021-02-09";
+  pname = "soldat";
+  version = "unstable-2021-02-09";
 
   src = fetchFromGitHub {
     name = "soldat";