diff --git a/pkgs/games/steam/chrootenv.nix b/pkgs/games/steam/chrootenv.nix
index 516d4b541f2..b2bca7ca7b9 100644
--- a/pkgs/games/steam/chrootenv.nix
+++ b/pkgs/games/steam/chrootenv.nix
@@ -77,7 +77,7 @@ in buildFHSUserEnv rec {
     libGL
 
     # Not formally in runtime but needed by some games
-    at_spi2_atk
+    at-spi2-atk
     gst_all_1.gstreamer
     gst_all_1.gst-plugins-ugly
     libdrm