diff --git a/system/services/ollama/default.nix b/system/services/ollama/default.nix
index f236d0a..d7f465f 100644
--- a/system/services/ollama/default.nix
+++ b/system/services/ollama/default.nix
@@ -13,6 +13,7 @@
             acceleration = "cuda";
             environmentVariables = {
                 OLLAMA_CONTEXT_LENGTH = lib.mkDefault "16000";
+                CUDA_VISIBLE_DEVICES = "0";
             };
             package = let 
                 pkgs-us = import nixpkgs-us {