diff --git a/hosts/dnsc-work/default.nix b/hosts/dnsc-work/default.nix
index 3b07c6d..6f6fcd2 100644
--- a/hosts/dnsc-work/default.nix
+++ b/hosts/dnsc-work/default.nix
@@ -85,6 +85,7 @@
       "librsvg"
       "pixman"
       "python-setuptools"
+      "gmp"
       "rbenv"
     ];