diff --git a/colorchord2/shell.nix b/colorchord2/shell.nix
index 2e345ef..2cb0e5e 100644
--- a/colorchord2/shell.nix
+++ b/colorchord2/shell.nix
@@ -14,6 +14,7 @@ pkgs.mkShell (localAdjustments {
         xorg.libXinerama
         libusb1
         udev
+        freeglut
         pkg-config
     ];
 })