diff --git a/runner_system.nix b/runner_system.nix
index 57d53c7..0a7933e 100644
--- a/runner_system.nix
+++ b/runner_system.nix
@@ -39,6 +39,9 @@ in
         settings = {
           runner = {
             capacity = 4;
+            envs = [
+              "DOCKER_HOST=unix:///var/run/docker.sock"
+            ];
           };
           container = {
             privileged = true;