diff --git a/pkgs/games/0ad/default.nix b/pkgs/games/0ad/default.nix
index d53942766bb..860db7c6d5a 100644
--- a/pkgs/games/0ad/default.nix
+++ b/pkgs/games/0ad/default.nix
@@ -1,14 +1,14 @@
-{ wxGTK, newScope }:
-
+{ wxGTK, stdenv, newScope }:
 let
   callPackage = newScope self;
 
   self = {
-    zeroad-unwrapped = callPackage ./game.nix { inherit wxGTK; };
+    zeroad-unwrapped = callPackage ./game.nix { inherit wxGTK stdenv; };
 
-    zeroad-data = callPackage ./data.nix { };
+    zeroad-data = callPackage ./data.nix { inherit stdenv; };
 
     zeroad = callPackage ./wrapper.nix { };
   };
 
-in self
+in
+self
diff --git a/pkgs/games/0ad/game.nix b/pkgs/games/0ad/game.nix
index ae0b2180a80..1ba975aa885 100644
--- a/pkgs/games/0ad/game.nix
+++ b/pkgs/games/0ad/game.nix
@@ -50,7 +50,7 @@ stdenv.mkDerivation rec {
     # Workaround invalid pkg-config name for mozjs
     mkdir pkg-config
     ln -s ${spidermonkey_38}/lib/pkgconfig/* pkg-config/mozjs-38.pc
-    PKG_CONFIG_PATH="$PWD/pkgconfig:$PKG_CONFIG_PATH"
+    PKG_CONFIG_PATH="$PWD/pkg-config:$PKG_CONFIG_PATH"
 
     # Update Makefiles
     pushd build/workspaces
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e2cd3cde339..671e3f56274 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -27097,6 +27097,7 @@ in
 
   zeroadPackages = dontRecurseIntoAttrs (callPackage ../games/0ad {
     wxGTK = wxGTK30;
+    stdenv = gcc9Stdenv;
   });
 
   zeroad = zeroadPackages.zeroad;