diff --git a/modules/steam/steam.nix b/modules/steam/steam.nix
index 064460e2..eb6de70f 100644
--- a/modules/steam/steam.nix
+++ b/modules/steam/steam.nix
@@ -115,7 +115,7 @@ in
 
       jovian.steam.environment = {
         # We don't support adopting a drive, yet.
-        STEAM_ALLOW_DRIVE_ADOPT = mkDefault "0";
+        STEAM_ALLOW_DRIVE_ADOPT = mkDefault "1";
         # Ejecting doesn't work, either.
         STEAM_ALLOW_DRIVE_UNMOUNT = mkDefault "1";
       };