diff --git a/pkgs/games/steam/fhsenv.nix b/pkgs/games/steam/fhsenv.nix
index 95668e1ecea9..559aee92c9f3 100644
--- a/pkgs/games/steam/fhsenv.nix
+++ b/pkgs/games/steam/fhsenv.nix
@@ -190,11 +190,14 @@ in buildFHSEnv rec {
     libvdpau
 
     # required by coreutils stuff to run correctly
-    # Steam ends up with LD_LIBRARY_PATH=<bunch of runtime stuff>:/usr/lib:<etc>
+    # Steam ends up with LD_LIBRARY_PATH=/usr/lib:<bunch of runtime stuff>:<etc>
     # which overrides DT_RUNPATH in our binaries, so it tries to dynload the
     # very old versions of stuff from the runtime.
     # FIXME: how do we even fix this correctly
     attr
+    # same thing, but for Xwayland (usually via gamescope), already in the closure
+    libkrb5
+    keyutils
   ] ++ lib.optionals withGameSpecificLibraries [
     # Not formally in runtime but needed by some games
     at-spi2-atk